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International Automotive Technicians Network
Re: Cruze P0171 code
Posted to Technical Discussion Forum on 4/6/2021

There is a PID for calculated air flow VS. actual. Its good to see how close these PIDs match at idle as its a great indicator of a leak.

I recently had a Dorman Valve cover with an oversize oil cap hole. It allowed fresh air into the oil system which throws... Login to read more.