|
Re: 2006 chevy express 6.0 codes
I would start with spark plugs...if the engine has Displacement on Demand (DOD) the plugs often get fouled and will set P0300
NGK TR55 are what I typically put in stock engines
lean codes could be:
vac leak
the tune is screwed up if someone messed with the stock tune
1 or more injectors not working
If an injector or 2 are not working, that could set both your codes...lean and will show misfire.
__________________
71 C10 long bed, 2003 6.0L, 06GTO E40, T56, 12bolt 4.10 rear
|