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28/01/2021 1:41 am
Topic starter
I have a 2009 Chevy cobalt 2.2L the check engine light comes on from time to time (P0171) I took it to the dealership and they couldn’t find anything wrong with it any idea what could cause that?
3 Answers
1
28/01/2021 4:09 am
I did a search PO171 code https://curateview.com/p0171-code/
SUMMARY Said:
The diagnostic code p0171 happens when a lean mixture is detected by the front O2 sensors. This lean mixture can either be short term or long term. If the lean mixture is a short term one, it means that the fuel mixture is usually very lean.
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28/01/2021 2:24 am
check out the FAQ for trouble lights.
