P0420 toyota 4runner

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P0420 toyota 4runner

Remember Me? Site Navigation. Hello again got a new problem yaaaa!!! I think i going to try some new wires and see what that gets me if not maybe try switching the coil packs around. If you do i would appreciat the feed back.. P is a code for the Bank 1 Catalytic Converter output. I wouldn't assume the problem is the cat - it's probably connected to the misfires somehow. Yes, Px is a misfire on a given cylinder, and P means more than one misfired. Which year and engine do you have? That information might trigger some more thoughts. Thanks for respponding! It is a limited 4wd with a v6. Do you think it might be a coil pack? P is a CAT problem,when you have misfire codes P is multiple misfire,P is cylinder 1 and so on. You may need a CAT.

Nelsonmd Senior Member.

Remember Me? Site Navigation. Member's Picture Albums. I know there have been countless threads on this error code, but since I got my 4runner down to Florida it has been popping codes. I have had it cleared a few times, no big deal. Here's the strange part though. The other day I was playing around at one of the state parks, going a bit fast on the dirt roads with my 4wd on, and the strangest thing happened.

Remember Me? Site Navigation. Member's Picture Albums. I know there have been countless threads on this error code, but since I got my 4runner down to Florida it has been popping codes. I have had it cleared a few times, no big deal. Here's the strange part though. The other day I was playing around at one of the state parks, going a bit fast on the dirt roads with my 4wd on, and the strangest thing happened. The check engine lights turned off.

P0420 toyota 4runner

Remember Me? Site Navigation. Member's Picture Albums. Check Engine Light intermittently comes on and off, for almost a year. Done the following: 1. Replaced Bank 1 Exhaust Catalytic converter manifold. Ran cataclean in fuel system. Same results, but Check Engline Light stays off longer since doing the above. Now its Back on again. It will go out again, and repeat the issue.

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The they said it was dirty air filter. Anyway's I'll keep you posted too. Best thing to do is start simple, then start the more involved after that. Ahdofu , Jan 30, Here is what you can do, go to a junk yard and find a 3rd gen and snatch the O2 sensors out of there and try in yours. That P code is really none specific. Getting code P bank 1 on Cali 4Runner Limited. Mark Forums Read. No doesn't burn oil. Forum Rules. I have had it cleared a few times, no big deal. This is after I did the ZPC. Explore Our Forums. Cats can last a very very long time, I'm surprised they were already replaced.

This page is meant to help you troubleshoot the Toyota 4Runner P trouble code. A failing oxygen sensor or bad catalytic converter are the most common causes of P Catalyst system efficiency is the percentage of these chemicals removed from the exhaust system.

Checked error code and it said pending p Car: 4Runner V6 Took car to pep boys. No doesn't burn oil. Pep boys had car for one week testing it and told me it is a bad yaw sensor. Thanks for respponding! Robb Senior Member. Thanks for all the help!! Insert Quotes Quotes Post Reply. Code P help. The Same Code pops up. Driven the 4runner miles and no issues with oil burn or low oil. You are currently viewing as a guest! The they said it was dirty air filter.