Duramax First Generation: 2001-2004 (LB7)
03 GMC 2500HD LB7
Problem: Lack of acceleration/ lack of power, sometimes will go into a lope idle (like a tractor). If I clear the codes the lope idle will go away.
Codes:
P0103
P0101
P2227
P2228
P0181
What I have replaced:
fuel filter
BAR Sensor
MAF Sensor
Air Filter
Water in the Fuel...