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STFT @ 0 ; LTFT @ 30 ?
Posted to Technical Discussion Forum on 9/15/2013 57 Replies

This is a police car with 76,000 mi. It keeps setting lean codes P0171 & P0174. I've already fixed a vacuum leak at the PCV hose, & O2's are now switching like they should.

I'm not fully understanding this, or I have a computer glitch. When the ignition is f... Login to read more.

57 Replies Received (View Replies)

 

car Vehicle Data

2012 Chevrolet Impala LTZ 3.6L

Engine3.6 L
Trans6-speed Automatic (Electronic)

car Vehicle Data

2012 Chevrolet Impala LTZ 3.6L

Engine3.6 L
Trans6-speed Automatic (Electronic)