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International Automotive Technicians Network
Re: Lean codes P0171/P0174
Posted to Technical Discussion Forum on 11/16/2024

[...trimmed text...]

Jack,

Well, you have one piece of the puzzle, fuel trims at idle.

Now that you have codes set again, share the freeze frame data for all the codes with us, that will help.

A snap throttle at id... Login to read more.