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P0171
Posted to Technical Discussion Forum on 5/22/2012 28 Replies

I have the above vehicle setting a p0171.

fuel trims are

Idle LTFT +16 STFT+ 1-6

2500 LTFT +4 STFT -3 to +5

Cruse LTFT +5 STFT -5 to +5

So it looks like I have a vacuum leak, using carb cleaner and propane I cannot get any change. I have plugged the ... Login to read more.

28 Replies Received (View Replies)

 

car Vehicle Data

1997 Buick LeSabre Custom 3.8L

1G4HP52K0V
Engine3.8 L
Trans4-speed Automatic (Electronic)

car Vehicle Data

1997 Buick LeSabre Custom 3.8L

1G4HP52K0V
Engine3.8 L
Trans4-speed Automatic (Electronic)