P0420 toyota 4runner

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Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. I have had other error codes. Car: 4Runner V6 Took car to pep boys.

P0420 toyota 4runner

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. Getting code P bank 1 on Cali 4Runner Limited. Is it oxygen sensor or catelytic converter? The total vehicle value is almost the cost to replace the catelytic converter. I can afford a oxygen sensor. How can I find out??? Sort by Oldest first Oldest first Newest first Most reactions. I think the p is usually the rear O2 sensor but could be either one. If they haven't been changed in a while you might as well do both. Be sure to get Denso sensors, not Bosch. Best prices around.

Needs converter.

Discussion in ' 3rd Gen 4Runners ' started by obx4runner , Dec 31, Log in or Sign up. Toyota 4Runner Forum [4Runners. Welcome to 4Runners. You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

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. And actually stayed off for a couple days. Sadly they are back on now though.

P0420 toyota 4runner

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Dr cutie drama

Welcome to 4Runners. Last edited: Jan 3, I might just take it to the stealership and have them run a diagnostics check see if they can narrow it down for me. Explore Our Forums. Toyota Fuel Tank Cap - Factory cats are very expensive they are the best but you can get an aftermarket one for much cheaper. P code 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. So I decided to run some Catacleaner and 44k through my system after I cleared the code. So why did it clear itself? I dont think it's the fuel. The service manual will show how to check this. Here's the strange part though. Log in.

This page is meant to help you troubleshoot the Toyota 4Runner P trouble code.

Please do keep me updated I cant decide what to try next. I will keep you posted. I know this is an older thread, but i didn't see the need to start yet another p thread. I will check the OBD and see if it states what the nominal voltage. View Public Profile. Both and both o2 sensors? Anyway i do have a couple of questions if anyone can help that would be great. Last edited by TheDurk; at PM. Smilies are On. I can see that the front o2 sensor voltage is fairly stable around 3. The computer compares the front o2 sensor output with the rear o2 sensor output , if the outputs are the same, the computer will throw that code.