My 1997 chevy cheyenne 4.3. is having problems accelerating. it is a manual transmission and it doesnt accelerate well when its cold. It does seem like when i get the rpms way up before releasing the clutch it will work fine. It has been giving me 174 and 171 codes saying its running too lean in both banks. IT is also giving me an 02 sensor code. I have tried fixing the fuel system multiple times. replaced fule pump, throtel positioning sensor, fule filter. And i am stumped, i would love some feedback. Thanks
Jun 2, 2011 at 5:05 PM