Tyler_609 |
04-30-2015 09:11 AM |
I need a lot of help with this nightmare
I own a 2007 Chevrolet cobalt SS sc I've had it for about a year now and it's always had the same problem... P0171 bank 1 too lean. I can't pass New Jersey inspection because of it I've tried a number of different fixes after reading these forums but now I need real help can someone please help me fix it. I've tried replacing the mass air flow sensor, I cleaned the throttle body, I put in a new air filter, I watched the graphs on the scan tool to check the O2 sensors which seem to be operating well, I replaced my fuel pump, I sprayed all over my engine with starter fluid to check for vacuum leaks and I also replace my supercharger bypass valve I'm lost.
|