2001 Oldsmobile Alero Q&A

2001 Oldsmobile Alero Question: how much will it cost to replace an EGR circuit with the diagnostic code of P040

The check engine light keeps coming on -
Answer 1
your missing a number after the 0. we need that number to help you. Roy -
Comment 1
Ok its P0401....thank you! -
Comment 2
that is a code for insufficient flow. you need to verify that vacuum and exhaust are getting to the valve before jumping to any conclusions. I would have a shop verify this and give you a pin point reason for the failure. Roy -