Duramax Lifetime Supporter
Join Date: Oct 2016
Location: Maurice, LA
What year is your truck?
If it is an 11-16 I think the first indication of a CP4 failure is that code. If that is the case, this is NOT good!
ANY other scenario would be a blessing!
2008 Silverado 2500HD CCSB LTZ Diesel
FASS 95 Lift Pump (with Baldwin filters), Edge Insight CTS Monitor on a Windshield Mount, Nicktane Fuel Filter Adapter w/ CAT 306-9199 UHE tertiary fuel filter, Bilstein 5100 Stock Height, Bushwacker Bed Rail Caps, AMP Research Bedstep, Fumoto oil drain valve, Dorman PS Oil cooler, Pioneer AVIC 7200NEX GPS/Stereo, Air Lift LoadLifter 5000 Air Bags.