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International Automotive Technicians Network
Re: This is a good one! p0171
Posted to Technical Discussion Forum on 5/2/2012 1 Reply

[...trimmed text...]

Norman

Are the fuel trim readings you posted at idle ? If this was in my bay i would graph both upstream 02,map,iat,load pid,ltft and stft. I would record reading at idle , 2500rpm and then take it... Login to read more.

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