Reset Check Engine Light?

NIR

MEMBER
2003 TOYOTA COROLLA

Hello.

I had "check engine" light on with diagnostics code p0420, replaced the catalytic converter, but the Check engine light is still ON.
How do I reset it?

Thanks.

Monday, August 18th, 2008 AT 3:40 AM

3 Replies

MHPAUTOS

MECHANIC
31,937 POSTS

Hi there,

THis video will show you how to clear the codes

https://youtu.be/ahK_eucFi-k

Mark (mhpautos)

SPONSORED LINKS

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Tuesday, April 28th, 2020 AT 11:21 AM

MTMOTORIST

MEMBER
1 POST
1999 TOYOTA COROLLA
4 CYL
FWD
AUTOMATIC
200 MILES

I have 1999 TOYOTA COROLLA 2 month ago I got P 0466 fail code then I change Charcoal Canister Then reset ECM CHECK ENGINE light became off. But now I cannot pass smog check because too hi CO. I already change spark plugs injectors-nothing changes. Car runs good, doesn, t eat gas, CHECK ENGINE off-no one can tell me exactly what else am I supposed to change?

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Sunday, August 9th, 2020 AT 12:00 PM (Merged)

RASMATAZ

MECHANIC
75,992 POSTS

Could be one of the following the coolant temperature sensor, oxygen sensor, leaking injector/s and fuel pressure regulator, excessive fuel pressure and restricted air intake

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Sunday, August 9th, 2020 AT 12:00 PM (Merged)