01-04.5 LB7 Duramax Powertrain
02, upgrades, banks six gun, cold air intake, and exaust. 375k miles.
Replaced injectors (all 8) twice, once at 199k, then at 275k. Replaced rail system as well.
Recently, truck began smoking, gray, at idle. Just smell at first, then smoke. Picked up MAFS code. Replaced, cleared code...