Posted to GM Driveability on 2/4/2012 33 Replies

Hi there,

I have this clean little cobalt eating my dinner. It is in for the light being on with a code P0171, lean exhaust bank 1. I have installed a new mass airflow sensor and upstream oxygen sensor and i can't tame this beast. I cannot really pick up any ...

FIX posted 2/7/2012