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International Automotive Technicians Network
Re: P0171, P0174
Posted to Technical Discussion Forum on 4/14/2012

Your solus will work just fine for this project, in fact, generic OBD2 data would work just fine.

To answer your question about an air leak at an intake port, yes it can drive that cylinder lean and cause an increase in fuel trim, but your trims are global t... Login to read more.