Mechanic Advice

357 readers

1 users here now

This community is for getting help with vehicle or other mechanical problems.

Remember, there are no stupid questions, we want everyone to feel welcome. If you don't want to answer a question that you think is silly, then just move on and keep it to yourself.

Rules:

Don't be a dick

That is all.

founded 2 years ago

MODERATORS

[email protected]

'99 Corolla engine code P0125 (midwest.social)

submitted 1 week ago by [email protected] to c/[email protected]

25 comments fedilink hide all child comments

I'm trying to diagnose a p0125 code on my 99 corolla. Toyota forums seem to say Toyota didn't follow standards on this code and it is likely also the O2 sensor, can anyone confirm if this is the case?

I'm getting no other codes, and it will run for about 30 minutes before triggering again. Last time it triggered I saw exhaust smoke on the way home, which went away as soon as I reset the code. after clearing the code the exhaust while clear does seem to be rich smelling. Engine seems to run fine, I'm not noticing any performance issues, not signs of dipping oil/coolant amounts. coolant gauge is operating and hitting the halfway point normally.

I can't think of anything else but the O2 sensor but I expected rougher performance and don't really want to spend $125 on a part if I don't have to.

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] 2 points 1 week ago

Yeah Honda’s are nice. It just sucks cuz even if you don’t get into a major accident, a small hit could fuck up your day vs a car you just carry on.