Check Engine Light P0171, P0404, P0401 | Could replacing EGR valve do it?

Asked by Guru9NXNQH Jan 24, 2022 at 11:59 AM about the 2006 Pontiac Torrent FWD

Question type: Maintenance & Repair

I cannot figure out how to fix these three codes and I would prefer to not spend
$100 to get it diagnosed but I will if I have to. What could I try to fix all these
codes? Thank you.

1 Answer

3,655

I have an idea your 400s are O2 sensors. I don't buy GM, so I don't know for exact sure

Your Answer:

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