Duramax Second Generation: 2004.5-2005 (LLY)
Working on a 2005 3500 regular cab 4x4.
Replaced head gaskets, injectors, fuel pressure regulator and all rubber fuel hoses. Once it started it threw code p0193 and p0670. Not concerned about the p0670 but the p0193 will not clear. When the truck came in it had the p0670 and I expected the...