SPONSORED LINKS
Monday, August 8th, 2011 AT 10:59 PM
IRASH
- MEMBER
- 2001 GMC SONOMA
- 4 CYL
- 2WD
- MANUAL
- 1,800 MILES
I have a 2001 gmc sonoma truck with a 2.2 liter 4 cylinder engine. Its throwing a code po171(bank 1 running lean). I have done all the checks I can do and when I clear the code it keeps coming back. I have changed the entire exhaust system with the 2 o2 sensors, I have changed the fuel filter the plugs and wireset. Now it is misfiring at a higher idle. What do I check for now.
