Please consult a qualified professional in your area if you have any questions or concerns about your check engine light. If you do not have the skills and knowledge for this method, find a good repair shop. The list of automotive Makes at the right edge of the screen. The engine is not over-heating. Darryl gx 470 1 is cat. When reality sets in people whit quality diagnostics are worth more than parts changers will ever be worth. After I replaced pre O2 sensor, code can back right away.
Recently i have had the check engine light come on in my car. Out of the possible causes, I proceeded to check my radiator for coolant level. I think it is a temp related issue as it runs fine after it warms up. Changed upstream o2 with new bocsh unit 99. I,have a 2003 jeep liberty. A clogged catalytic is a very serious problem, as it will prevent exaust gasses from being able to exit the combustion chamber, and can cause permanent engine damage. The only exhaust system problem I'm aware of is a hole in the muffler, just haven't had a chance to replace it.
Please help asap my smog is due now. They reset the code with the hand-held computer and sold it to me. Freakin dealer sold me a car with exhaust work already done. Only when I go at highway speeds for more than an hour, at one time, does my check engine light come on. I then bowed down to the stealership and paid an arm and a leg for a stock cat and all is good now. Then mechanic told me it was upstream 02 sensor1! As oxygen storage capacity decreases, the heated oxygen sensor 2 switching frequency will increase.
Do you think it is possible that most mechanics are great at what they do and not great communicators? There is no clear answer to what needs to to repaired without further diagnostics. How do I know if my converter is bad? Could anyone tell me where is the cataLic converter in the car and can we fix ourself. The spacer pull the sensor probe out of direct exhaust flow. Hi I have a 2003 Toyota sienna. I used to think it had to do with when I filled up, but I don't know. And also check your cold air intake hose for leaks use zip ties to seal up intake hose if needed. You should not see much variation in the O2 output.
I searched around for possible cures. As long as the car was ran normally, it ran great. It's showing the code P0420. The most common thing is the catalytic converter itself is no longer functioning properly. It covers Kia Soul P0420 meaning, symptoms, causes, and possible solutions. . Detaching the negative terminal is usually enough.
This engine co … de can be triggered by any one of the following: 1. I could clear the code, it would stay off for a few miles up to 40 minutes of driving and the light would come on again. However, If the cats are not glowing red. I am still not 100% sold it is the cat. The car seems to have slight miss when running. My brother told me to try electrical grease that is made for sensors to prevent any current from giving false readings.
Now I'm off to go try out my own advice, and I'll be back to let you know how it works out. Maybe its the oyxgen sensor? Thx for the help on this guys!! About 100 miles ago the light went off. Possible Solutions Measure the voltage at the oxygen sensor on Bank 1 the rear sensor, or the sensor after the converter. Replacing the up-stream oxygen sensor has solved my particular P0420 check engine code. If your car's check engine light is on, get that code read in case it's a P0420.
Also, be sure to follow proper diagnostic procedures to determine whether a part has failed. Are the cat's that delicate that it could be ruined, or maybe a o2 sensor? I had it re scaned and again po420!!!! If it is stopped up will it blow air through the exhaust? That went bad in 2 weeks. This page is meant to help you troubleshoot the Kia Soul P0420 trouble code. I read all of these posts and was confident my catalytic converter did not need to be changed contrary to a few mechanics knee jerk opinion. Check engine still came on.
At that time the truck was still running however now the truck will not start it is trying but wont start. A three way catalyst converter Manifold with high oxygen storage capacity will indicate a low switching frequency of heated oxygen sensor 2. Natfisa My engine light just came on. Trouble code P0420 means: Catalyst Efficiency Below Normal Bank 1 Answer. A leaky exhaust gasket or joint can allow air into the exhaust pipe which results in false readings.
This code means that the catalytic converter is not cleaning the exhaust properly or the oxygen sensors are sending false info to the computer. I'm am hoping that maybe it is just a rear oxygen sensor setting off the code but want to make sure. Dear Sir , Recently the engine check light have been on. Unfortunately, what ever your specific situation is, it is most likely a costly one. Ill fix and let all know. Can you help what we should do next? My question is could it just be caused by the misfire and should I first inspect the plugs to make sure they are all good. P0420 Description The Engine Control Module monitors the switching frequency ratio of heated oxygen sensors 1 front O2 sensor and heated oxygen sensors 2 rear O2 sensor.