L
lukeluke
Guest
I have a 99 GMC Sierra. I ran two codes that are PO171 and PO174 which say
the car is too lean. What should I look at to see why it is lean? The car
ran real bad but began to run better. It still misses once in awhile but
still shows the two codes.
the car is too lean. What should I look at to see why it is lean? The car
ran real bad but began to run better. It still misses once in awhile but
still shows the two codes.
