Posted to GM Driveability on 4/30/2012 48 Replies

This truck has engine miss on cylinder 1, this is the only cylinder that shows to be misfiring. It has good compression, good fuel pressure (65 psi), good spark and the injector waveform looks fine. I can't figure it out.

Has anyone out there run into this be...

FIX posted 5/4/2012