The trend among manufacturers is to place the converter as close to the engine as possible because converters only work when they are hot. Let's take a look at the next subheading and find out why the catalytic converter fails. Engineers provide the check engine light with monitors to check for misfires. Codes are triggered based on a series of events and those events can vary by manufacturer, year, engine configuration, emissions standards (Federal vs. Don't know who can do this and how. I used to get around 50 mpg on highway, but now i only have 30 something. My 98 Corolla LE (90K miles) have the check engine light on while driving and when I checked the code at the shop, it shows p0420. Like most other parts on your Corvette, they are prone to wear and over time can clog up. A few months ago, my check engine light came on. Q: Is it bad to bypass my catalytic converter with a test pipe? I use an oxygen sensor spacer to avoid the check engine light coming on. If you plan on registering your vehicle in California, you must use a catalytic converter that meets CARB standards. If your check engine light is on or flashing, it's time to come into your neighborhood Firestone Complete Auto Care store for a car diagnostic. It’s measured by comparing the data fed by both the pre-cat and post-cat oxygen sensors. The most common cause of failure in a catalytic converter in an older car is that it becomes so clogged that the exhaust gases can’t get through it to the muffler and out of the car. Now if you delete the cat the ecm will know the values on the o2's will be the same and a cel (check engine light) will come on sooner or later with todays high refresh rate sensors. Well, the main reason is to make sure your car will run properly if you don't have a catalytic converter and that the check engine light isn't constantly on. First, disconnect the Oxygen sensor. Check engine light flashes in a sequence of %26quot;flash, flash, on%26quot; after using the ignition key method (this means it needs an oxygen sensor). I have a 2002 Toyota Camry and my check engine light came on , i then took it to a toyota dealer and they told me that the Catalytic Converter needed to be replaced. I used to get around 50 mpg on highway, but now i only have 30 something. 2001 Acura RSX Replaced Catalytic Converter but Check Engine Light is Still On. The rear catalytic converter started acting up (check engine light popped on about every 400-500 miles, it was a PO420) at 110,000 miles. The catalytic converter and mufflers help your vehicle exhaust cleaner emissions while maintaining more engine power. Soon the light went out which made me happy, but when the tank got down 3/4, the light came back on again so I have aborted using the BG 44k (at $25 a can it is pretty costly). When o2 voltage matches the front the computer thinks the converter is not working. Yesterday I had the catalytic converter replaced, and after, the Check Engine light is on as well as a blinking Cruise light. Typically the P0420 code triggers the Check Engine Light if the readings of the two sensors are. ' Page 286 says, 'There is a fault with the exhaust. O2 sensor spacer Specifications: Package: 1 Piece This O2 cel fix actually has a miniature catalytic converter built inside and will help get rid of that annoying check engine light you get after modifying your exhaust or removing your catalytic converter, and sometimes even when installing a high flow catalytic converter. The reason I did this is because I have a test pipe, which gives me a check engine light. This is because it could be pointing to dozens of possible problems. Brie likes this. I have a 2008 Subaru Outback base model. Audi shaking is often caused by a worn spark plug, bad ignition coil, Ignition Control Module (ICM), or bad catalytic converter. I hate to spend 1000 dollars on a Honda Catalytic Converter when the part isn't even broken. If you drive a hybrid or a diesel-powered vehicle though then you must check the engine compatibility. Any clogs in the CAT will directly affect the efficiency and power of the engine. That's why I recommend using your own scanner to clear the computer and see if the light comes back on. However, the downsides are numerous assuming you live in an emissions tested state or country. How to Eliminate "Check Engine Light" after Removed Catalytic Converter ? My 2000 Beetle 1. Subaru Forester, I keep getting a P0420 code. You would have known by now if that was a problem. Last month. If after the reset, the light comes on again, it really is the catalytic converter. Reset the code and drove 250 miles. The converter might be clogged. com names replacing a catalytic converter as the third most common car repair related to a “check engine” warning light, and estimates the average cost for parts and labor at $1,029. When attach a trouble code reader and come up with a P0420, your first assumption may be that you need a new catalytic converter, simply because the words catalytic converter are mentioned in the code. ’ Page 286 says, ‘There is a fault with the exhaust. Catalytic converters are usually made of a honeycomb ceramic or metallic substrate to which the following catalysts; platinum, palladium and rhodium are applied. How to bypass AIR pump so it won't cause a check engine light. hey how yall doin, i have 2000 chevy silverado 1500 v8 4. Upstream and downstream should not MATCH as in the cat delete why the cel will come on. Yesterday I had the catalytic converter replaced, and after, the Check Engine light is on as well as a blinking Cruise light. Learn what does P0420 Catalyst System Efficiency Below Threshold Bank 1 means, location and how to repair? The Engine Control Module (ECM) monitors the switching frequency ratio of heated oxygen sensors 1 (front O2 sensor) and heated oxygen sensors 2 (rear O2. They informed me that the catalytic converters need to be replaced. Just screw it the o2 simulator mini cat into the existing exhaust then srew in the oxygen sensor, that easy. I personally would not use this on a wide-band because the sensor is far away from the exhaust gasses and probably doesn't read particularly fast. The catalytic converter and mufflers help your vehicle exhaust cleaner emissions while maintaining more engine power. Check Engine Light Turns On – A catalytic converter gone bad can also lead to the check engine light turning on, there are sensors installed in newer model vehicles designed to monitor the levels of gas in the exhaust and the catalytic converter’s efficiency. 3 with 112000 miles, how do you stop it from throwing the Check Engine light without affecting other check engine signals?. The car runs fine, so signs so far of misfire or bad fuel consumption. While catalytic converters will often last the life of a vehicle, they occasionally will fail. After, it passed with flying colors. The catalytic converter closest to the cylinder head can fail causing illumination of the Check Engine Light. Then, as long as your cat it working and there are zero performance issues, no light and it will pass emissions. The reason is the converter is part of the exhaust manifold, and the replacement unit is sold as a complete assembly. I took it to a reputable mechanic and tells me that the catalytic converter is falling apart. You can generate more horsepower without it. The AIR pump (emissions control) is seized and, since I don't have a catalytic converter, replacing it (they're really expensive) doesn't make sense. But because it is still performing it's function, no engine light has come on. my 2004 camry 4. Reply 1: code P0420 may mean that one or more of the following has happened: A damaged. Follow exhaust manifold on the side. Here at AutoZone we have what it takes to keep your car efficient so it can rev like a mean and clean driving machine. I took it to my normal repair shop and was told the computer data said it was the catalytic converter. Preventive engine cleaning enables you to restore engine parts rather than replacing them, thereby saving vehicle owners on costly parts, such as a new turbocharger ($ 1. The catalytic converter is the part of your exhaust system that converts dangerous exhaust fumes to less harmful emissions. What is km driven. my cats have this rattleing noise when i accelerate. Hi, I need some advice for my 2003 AWD T&C Limited, 90k miles. The P0420 Check Engine Light is triggered by a reduction in catalytic converter efficiency. A code reader is a handy tool if you have a check engine light. Your Check Engine Light may be indicating a simple problem that's easy to fix—such as a loose gas cap that needs to be replaced. If your vehicle’s catalytic converter is failing or has gone bad, the “Check Engine Light” will illuminate on the dashboard. After, it passed with flying colors. My check engine light eventually turned off for about 2 weeks and has turned back on. In this situation, the "check engine" light will not come on to indicate catalytic converter failure, because all is well. Using Federal Emission Catalytic Converter On A California? Would my 1996 Toyota Tacoma DLX 4WD 2. Catalytic Converter Issues: I own a 2001 Passat GLX 4motion. not sure if this made a difference but i treated the fuel system with slick 50 high mileage fuel treatment & the check engine light came on after driving 40 miles or so after the treatment. The mechanic replaced the pipe with an after market part. I need to reset the catalytic converter on my 2004 Camry Le in order to pass CA smog test. it is manual transmission. This can be caused by a fuel system problem, a clogged catalytic converter, damaged O2 sensors or a combination of all three. Place the bypass pipe into the exhaust system where the converter was removed. A few months ago, my check engine light came on. the o2 sensors are most comonly on the first cat (should be next to the engine block) bypassing it means the o2 censors will be disconected so that will result in a check engine light on your dash. Recently at 269,000 miles the P0420 code came on again. This time I cleared the codes with the scan tool. 5 CEL Eliminator Check Engine Light Adapter Real Mini Catalytic Converter O2 Oxygen Sensor Stainless Steel Car Accessories 4. So a resistor can replace the o2 sensor to bypass the cat converter. oohh "YES, THE SENSOR AIR FLOW OR CATALYTIC CONVERTER"YES "MOSTLY ALL TITANS AND NV VANS ARE LIKE THAT"WILL COST ME AROUND $1200 TO REPAIR IF IS CALALYTIC. Well, the main reason is to make sure your car will run properly if you don’t have a catalytic converter and that the check engine light isn’t constantly on. Does this mean my catalytic converter is good? Does this mean my catalytic converter is good? Or, could a catalytic converter be bad and not cause the check engine light to glow. Catalytic Converter California Legal found in: Catalytic Converter CARB Approved, Catalytic Converter, Catalytic Converter EPA Approved, Legal Note:* In Compliance with the state of CA and NY Emissions Requirements for California. It could also be a warning of a serious problem that could damage your engine components. My check engine light came on and I took it to the Subaru dealer. above the catalytic converter and two are downstream i. I ask is it really necessary to replace a catalytic converter (at ~ $1200 and up) after the check engine came on, and one of two mechanics said a bypass valve was plugging up, and the solution is to replace the “second” catalytic converter. Welcome to the Club4G Forums where you can join fellow owners from all over North America discussing anything related to the 2006+ Mitsubishi Eclipse. 4L engine (RPO LAF), a malfunction-indicator light (MIL) may illuminate due to thermal damage or face erosion of the catalytic converter. CHECK ENGINE LIGHT ON. Follow exhaust manifold on the side. 8l with 177,xxx miles. Silverado & Fullsize Pick-ups - catalytic converter removal sensor bypass - I'm looking at headers and straight pipes for my '05 2500 with 6. 90 Sensor Spacer Engine Light Cel Check Bung Mini Catalytic Converter Fit O2 Sale. Can you bypass your catalytic converters on a 1998 GMC Sierra with out your check engine light coming on - Answered by a verified GM Mechanic We use cookies to give you the best possible experience on our website. Aims of the tests. The best solution is to keep the catalytic converter as it is and try and seek another solution. I'd say disconnect the battery to reset the check engine light. 00 to replace converter, - Answered by a verified Toyota Mechanic We use cookies to give you the best possible experience on our website. The check engine light (CEL) doesn't give you much information, but the five most common reasons why the light comes on in most vehicles include a faulty oxygen sensor, loose or faulty gas cap, faulty catalytic converter, faulty mass airflow sensor, or failing spark plugs and/or wires. 5 Check Engine Light | eBay. Codes are triggered based on a series of events and those events can vary by manufacturer, year, engine configuration, emissions standards (Federal vs. You would have known by now if that was a problem. When your catalytic converter goes bad, it can set an warning light on your dash, cause your engine to stall, or even be responsible for failing an emissions test. Meaning of Check Engine Light Flashing. If the needle on the gauge drops steadily from 2500 rpm, check the exhaust for a. Have the engine checked by a qualified workshop. Scotty Kilmer 1,782,112 views. he told me. I ask is it really necessary to replace a catalytic converter (at ~ $1200 and up) after the check engine came on, and one of two mechanics said a bypass valve was plugging up, and the solution is to replace the "second" catalytic converter. The next day the service engine soon light came on. I own a 2005 Jeep Wrangler Unlimited LJ with 100k miles. You can temporarily turn it off by removing the battery cables for a few minutes and them putting them back on, however within 25 miles it will be back on. This may very temporarily change the firing conditions of the engine and clear the check engine light, however if the O2 sensor is bad or the CAT is bad the problem is just going to come back and very quickly. It converts potentially lethal carbon monoxide into carbon dioxide. Subaru Check Engine Light and Code # P0420 Explained By Justin Stobb on January 18, 2011 in All Wheel Drive Auto News , Featured , Subaru Repair Seattle If the check engine light comes on in your Subaru there is always a corresponding code set in the computers memory. The Catalytic Converter is in the line of the exhaust between the engine and the muffler. I haven't had the codes read yet but I was wondering if anyone else has had a similar issue with this after installing this or any other brand of converter. A flashing check engine light indicates that you have problem that will damage the catalytic converter. This is not an indication of any actual issue with the engine, and does not prevent normal vehicle operation. This time they replaced the hoses because they were cracked and apparently leaking. Engine management warning light for catalytic converter keeps coming on even though the converter has been replaced. The fix: The most common reason for catalytic converter failure is a faulty spark plug. The MIL or Check Engine light comes on. Cat fooler did not do the thing. I have heard of non- foulers? Not sure what they are or how they work. Then, look after the catalytic and you should find another O2 sensor, this is the one you mention in your post. 2014 Overland Diesel: A bad catalytic converter? I have a check engine light on as wellalmost 12k miles. When a catalytic converter gets plugged, the only way to unplug it is. 00 to over $300. The main catalytic converters are located on the headers and 2nd set of cats are DELETEABLE with absolutely no ill effects. Mechanic said he doesnt believe anything is wrong with catalytic converter. I have a 2003 745li, the engine light came on, so I took it to the shop. This advantage occurs because the unit creates a source of back-pressure on the engine. I agreed to it only because it was a covered expense under my warranty. If it’s not, your car should let you know. Just screw it the o2 simulator mini cat into the existing exhaust then srew in the oxygen sensor, that easy. Explorer requires 4 O2 sensors in total. i just took my car back, and thank GOD the check engine light didnt come on, there is no increase in power, maybe a decrease but i dont mind, didnt drive it long enough to check the fuel. I drove home and, on the way, filled it with gas. My Prius is getting 41mpg. Well, the main reason is to make sure your car will run properly if you don't have a catalytic converter and that the check engine light isn't constantly on. And our CEL eliminator is one kind of small catalytic converter in front of the O2 sensor, so if your real catalytic converter is broken, the CEL eliminator can help you to reduce the toxic gas. so good luck and if you fix your problem let me know =). If you plan on registering your vehicle in California, you must use a catalytic converter that meets CARB standards. Lower the exhaust pipe and look inside. Subaru Forester, I keep getting a P0420 code. I have a 2005 Prius with 117,000 miles on it, and I live in Rancho Cucamonga, CA (yes, it does exist). They want 2800. This may also cause the check engine light to come on, which will cause the vehicle to fail an emissions test. O2 Sensor Simulator All performance enthusiasts are looking for any possible way to increase the power and efficiency of their engine. For the State of California our Exhaust Products are not C. It is just the nature of their design that cause them to have a high. To be sure, I replaced all three o2 sensorsdamage was $900the check engine sign comes back after 25 miles of driving. In this case, the converter must be replaced. Just screw it the o2 simulator mini cat into the existing exhaust then srew in the oxygen sensor, that easy. 100mV to 600mV) then it's time to replace the catalytic converter. Designed to stand off the exhaust pipe to clear obstructions and provide a measured capacity to keep the check engine light (CEL) off. Catalytic converters on older model cars tend to have a simpler design, and are less expensive to replace than more recent high-tech versions. The computer only needs a reading of 50 ohms from the o2 sensor to keep the 'check engine ' light off. You may now remove the catalytic converter from your exhaust system. I have a 2008 Subaru Outback base model. My check engine light came on and I took it to mechanic, he plug his equipment up and diagnostic was bad catalytic converter. Since the O2 sensors have been replaced now my catalytic converter is bad. ) Page 18 of my handbook states: 'Fault in catalytic converter. Everything came back to normal except a system monitor for the catalytic converter. So I've finally gotten to the cause of my check engine light in my 1994 Camaro Z28. The reason is the converter is part of the exhaust manifold, and the replacement unit is sold as a complete assembly. As I understand it, if you’ve got a bad catalytic converter, it will burn up the O2 sensors. Yes, I drive a lot. Below is a list of a few of the possible problems that could cause your check engine light to activate. They told me it was the catalytic converter. I replaced my catalytic converter in 2010 for around $800. This article applies to the C5, C6, and C7 Corvette (1997-current). I ask is it really necessary to replace a catalytic converter (at ~ $1200 and up) after the check engine came on, and one of two mechanics said a bypass valve was plugging up, and the solution is to replace the “second” catalytic converter. The check engine light came on, and while I was getting new tires the mechanic hooked it up to the computer and told me the problem is being reported from the catalytic converter. Catalytic Converter Operation. Bank 2 Code is a P0430. When this Check Engine or Service Engine Soon light flashes you should pull over. Why is my Volkswagen check engine light on? By Product Expert | Posted in FAQ, Service Center on Wednesday, March 16th, 2016 at 7:51 pm Causes and meaning of the VW check engine light. I used to get around 50 mpg on highway, but now i only have 30 something. More specifically, the sheet they printed says "Code P0430 indicates that the Bank 2 Catalyst System efficiency was below threshold for a predetermined period of time. About 50 miles into a 2500 mile trip, out in the middle of nowhere, my check engine came on (2012 Grand Cherokee 4x4 3. The problem I am having that I don;t know which Catalytic Converter I should buy. You will have to look for the port as the location can vary based on the model of your car. The engine light being on or. Try to eliminate 1 at a time. This stored Diagnostic Trouble Code (DTC P0420) is not definitive enough to just replace the parts based upon its’ indication. Ignoring a flashing check engine light is an invitation to disaster. Passes emissions testing and factory warranty ; More sports cars sound. Replacing a catalytic converter is expensive, but it is especially so on the Kia Spectra. The mechanic said my catalytic converter need to be replaced, whi. To be honest, you really need to have the computer codes read to help narrow things down…its cheaper than guessing at parts to replace and all the time involved in testing these. Go to auto zone and get 2 spark plug non- foulers. There are different ways to diagnose this code but we show you a quick way. I checked the gas cap and waited a few "driving cycles" before calling the dealer. If your check engine light is on or flashing, it's time to come into your neighborhood Firestone Complete Auto Care store for a car diagnostic. If your state requires inspections you will fail. When installing a high flow catalytic converter on your car or truck your check engine light (CEL) may illuminate due to an increase in airflow. This can be a very serious thing. I also was able to drive it from CA to LA in three days which was 2,300 miles. It is difficult to determine the exact cost to fix Audi check engine light without pulling the codes first. List of the Pros of Removing a Catalytic Converter. My check engine light came on about a week ago. The AIR pump (emissions control) is seized and, since I don't have a catalytic converter, replacing it (they're really expensive) doesn't make sense. Or if the check engine light has been on for some time before and ignored then you will never know that there is an underlying fuel management issue and you will damage the cat. If your vehicle’s catalytic converter is failing or has gone bad, the “Check Engine Light” will illuminate on the dashboard. Mike Tread lightly. It doesn't often fail and if it does it is generally because something else went haywire first, which likely triggered the check engine light long before the catalytic converter would have. Last month. I personally would not use this on a wide-band because the sensor is far away from the exhaust gasses and probably doesn't read particularly fast. Usually you will be able to feel a noticeable difference in the way your vehicle is running. the subaru dealer said they couldnt figure a reason for the check engine light coming on. The Check Engine Light themselves do not tell us to replace components, they point us to a possible cause of a malfunction. The next day the service engine soon light came on. Clear check engine light for less than 5 dollars I install a "buffer" in between the downstream oxygen sensor and the catalytic converter. Passes emissions testing and factory warranty ; More sports cars sound. YES !!! you can bypass a catalytic converter by putting in a straight pipe. The second time was the check engine light coming on, but still the acceleration issue. 100mV to 600mV) then it's time to replace the catalytic converter. Fixing Bad Catalytic Converters With P0420 #2452218 12 ECU" and turns on the Check Engine light is behind the rear converter. Finally I had some money saved up and had my uncle read the codes at his shop (Goodyear). Have the engine checked by a qualified workshop. Pls Help: Catalytic Converter Missing In Exhaust Pipe / Stollen Catalytic Converter / Driving A Car Without Catalytic Converter (1) (2) (3) ( Reply ) ( Go Down ) How To Remove Check Engine Light Originating From Bad/absent Catalytic Converter by tunaprex : 6:16pm On Jan 30 , 2013. Catalytic Converter Issues: I own a 2001 Passat GLX 4motion. Once the catalytic converter is removed from a vehicle, some models do experience a significant increase in power. 8T has a plugged catalytic converter, told by Check Engine Light, code read "Cat Low Efficiency". I replaced with a Acura catalytic converter I purchased directly from dealer. It doesn't often fail and if it does it is generally because something else went haywire first, which likely triggered the check engine light long before the catalytic converter would have. DTC P0420 is present. However, the check engine light also appears when the fuel tank cap is loose, or a change in humidity has occurred. My 2001 Acura RSX failed CA smog test because of Check Engine Light. Simply put, this means your car is adding more pollution into the air than it's supposed to. A year ago, I changed the catalytic converter after a smog test failure. This is a serious repair that can cause permanent damage to cars. number one you could have a check engine light on saying low deficiency out of parameter's. PO430 again. 2001 Acura RSX Replaced Catalytic Converter but Check Engine Light is Still On. P0422 reads : Catalyst System Low Efficiency Bank 1. If you ignore a flashing check engine light it is entirely possible that the vehicle burns up the catalyst and causes engine damage. The mechanic said my catalytic converter need to be replaced, whi. If your vehicle’s catalytic converter is failing or has gone bad, the “Check Engine Light” will illuminate on the dashboard. There can be one to five sensors per vehicles and having them replaced can cost a consumer $100. The catalytic converter closest to the cylinder head can fail causing illumination of the Check Engine Light. 8l with 177,xxx miles. Oxygen O2 Sensor Spacer Adapter Bung Catalytic Converter Fix Check Engine Light This O2 cel fix actually has a miniature catalytic converter built inside and will help get rid of that annoying check engine light you get after modifying your exhaust or removing your catalytic converter,and sometimes even when installing a high flow catalytic. I hate to spend 1000 dollars on a Honda Catalytic Converter when the part isn't even broken. They told me my catalytic converter has to be replaced. The O2 Bungs feature a real mini catalytic converter. Passes emissions testing and factory warranty ; More sports cars sound. This is commonly done for testing purposes only !!!! Tampering/removing any emission control device if a FEDERAL offence, as well as a STATE offence in most states. To demonstrate whether the standard catalytic converter represents a significant impairment to engine power and torque output (or, to put it another way, whether a cat- bypass tube releases significant gains in power). One thing to note is that many vehicle manufacturers offer a longer warranty on emissions-related parts. A faulty catalytic converter can cause a check engine light. And our CEL eliminator is one kind of small catalytic converter in front of the O2 sensor, so if your real catalytic converter is broken, the CEL eliminator can help you to reduce the toxic gas. If you don't you will probably have a check engine light come on and stay on due to a code being set. was due to a catalytic converter. You Have a Missing, Damaged or Loose Gas Cap. It is difficult to determine the exact cost to fix Audi check engine light without pulling the codes first. The rear catalytic converter started acting up (check engine light popped on about every 400-500 miles, it was a PO420) at 110,000 miles. The catalytic converter. The check engine light warns of issues ranging from a gas cap that’s not properly tightened to a more serious failure like a bad catalytic converter or a problem with one of the car’s oxygen. Step 2 – Check the pipes. BMW and MINI – Catalytic Converter Failure – Diagnosing Fault Codes and Fuel Trims. This car, a Prius, has twice failed a State inspection of auto emissions. Recently, my check engine light came on so I took it to the shop. Step 2 – Removing the Catalytic Converter. A year ago, I changed the catalytic converter after a smog test failure. Welcome to the Club4G Forums where you can join fellow owners from all over North America discussing anything related to the 2006+ Mitsubishi Eclipse. The Tuner part is the issue, anyone with an inkling of basic car mechanics can bypass the DPF, but most non-professionals will not know how to tune the engine unless you have either a special DPF deletion tune or have someone tune it for you. I just had a magnaflow direct fit, catalytic converter installed and the problem was fixed. i sealed it and noticed rapidly dropped mpg( increased fuel consumption) , last week week i travelled an had a leak around the same point and the fuel consumption dropped significantly. Check engine light code indicates catalytic converter problem. Also vehicles with CALIFORNIA EMISSIONS require OEM grade or CARB certified catalysts to keep the check engine light off and won't tolerate an aftermarket catalyst , no matter how expensive. It is important to remember that if your "Check Engine Light" illuminates and someone just simply reads a code of PO420, 421, 430 or 431 this does not necessarily mean the Catalytic Converter is bad! All that code says is either Converter operating below efficency or Converter operating below threshold. Just screw it the o2 simulator mini cat into the existing exhaust then srew in the oxygen sensor, that easy. A faulty catalytic converter can cause a check engine light. I took it to my normal repair shop and was told the computer data said it was the catalytic converter. I just took our 2009 SLT2 (18k miles) in for a check engine light and was told that 2 of the 3 catalytic converters had failed. The check engine light came back on recently and brought it to a different mechanic than the one that replaced it (there's a reason I don't go to him anymore) and he told me the CC needed to be replaced. You are not supposed to give it in. My check engine light came on and I took it to the Subaru dealer. oohh "YES, THE SENSOR AIR FLOW OR CATALYTIC CONVERTER"YES "MOSTLY ALL TITANS AND NV VANS ARE LIKE THAT"WILL COST ME AROUND $1200 TO REPAIR IF IS CALALYTIC. I had to put the old cat. I have a 2008 Subaru Outback base model. When this Check Engine or Service Engine Soon light flashes you should pull over. below catalytic converter. Replace Coolant Temperature Sensor Use a scope to diagnose the oxygen sensor operation (Tip: The oxygen sensor in front of the catalytic converter normally has a fluctuating waveform. I drive a 2002 Chevy Impala and the check engine light has been coming on for about 4 years. 8T has a plugged catalytic converter, told by Check Engine Light, code read "Cat Low Efficiency". It came out to be the catalytic converter, rich gas or possibly an o2 sensor. com and save money! We've got a wide selection of Catalytic Converters & Components parts at wholesale prices!. Since its a after market part it can cause my check engine light to turn on, even though the part is not faulty. The computer may store a trouble code (like P0420 through P0423) in memory. Learn what does P0430 Toyota Catalyst System Efficiency Below Threshold Bank 2 means, location and how to repair? The Engine Control Module (ECM) monitors the switching frequency ratio of heated oxygen sensors 1 (front O2 sensor) and heated oxygen sensors 2 (rear O2. A simple Google search of “catalytic converter clog” will show that one of the most common symptoms in sluggish acceleration. I ask is it really necessary to replace a catalytic converter (at ~ $1200 and up) after the check engine came on, and one of two mechanics said a bypass valve was plugging up, and the solution is to replace the "second" catalytic converter. I noticed the "check engine light" come on after taking it to a Toyota service center. Our auto service professionals will. Catalytic converter removal the easy and cheap way Check Engine Light & the Catalytic Converter - Duration: How To Fix A Catalytic Converter Check Engine Code With Spark Plug Non Foulers!. Finally replaced the cat to fix the problem. I brought it back and they replaced the catalytic converter. Potential Causes: Defective catalytic converter(s) Diagnostic Codes: 16804, 16805, 16814, 16815, P0420, P0421, P0430 or P0431. Catalytic converters are one of those necessary evils required on your vehicle to help "clean-up" exhaust gases and keep the environment clean. It could also be a warning of a serious problem that could damage your engine components. Please also bear in mind that this system does not include catalytic converters, so the Check Engine Light (CEL) will most likely be triggered. If your check engine light is on or flashing, it's time to come into your neighborhood Firestone Complete Auto Care store for a car diagnostic. But because it is still performing it's function, no engine light has come on. The O2 Bungs feature a real mini catalytic converter. And our CEL eliminator is one kind of small catalytic converter in front of the O2 sensor,. If your vehicle’s catalytic converter is failing or has gone bad, the “Check Engine Light” will illuminate on the dashboard. Then screw back the oxygen sensor right on the two spark plug adapters already inserted in the exhaust pipe. Is the catalytic converter causing the check engine light to turn on? The catalytic converter is one of the biggest repairs that may cause the check engine light to turn on. As a result, the emitted gasses make a less damaging impact on the environment. What Causes the Catalytic Converter to Fail. If you ignore a flashing check engine light it is entirely possible that the vehicle burns up the catalyst and causes engine damage. Last week I went to the stealership to check on the "check engine" light and they said the diagnostics stated it's a faulty battery, which needs a replacement, and they also had to reset the tire pressure monitors.