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Code p0133 for 1999 grand am
1999 Pontiac Grand Am

Code p0133 for 1999 grand am

(1999 Pontiac Grand Am)
Engine idle fluctuates while stopped at light or in slow traffic. Hard to start sometimes after stopping at the store. Engine still warm. Starts good when engine is cold. Can smell gas shortly after starting when cold. Service Engine Soon light comes on - scanner code is P0133. Have changed the gas cap.
What seems to make the problem better or worse? It's worse when engine is hot/warm
How long have you had this problem? more than once over the last year
Tags: p0133 code, pontiac, grand am
1 answer & 0 comments
Popular Answer
on November 25, 2018
The is a code for the bank 1 pre cat 02 sensor. It's start by replacing that if you have high mileage and it's original. You can also check for vacuum leaks as well.

Alex
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General Diagnosis
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on November 25, 2018
The is a code for the bank 1 pre cat 02 sensor. It's start by replacing that if you have high mileage and it's original. You can also check for vacuum leaks as well.

Alex
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