DD15 Engine Brake Issue

[Bengy88]

If your mcm was flashed when your truck was deleted then I can guarantee it’s a bad one. The only successful deletes I’ve seen on a dd13 or 15 that doesn’t harm the engine and break turbo shafts is when the acm is the only thing flashed, egr is left active and necessary changes made to the mcm with dddl. Not saying your delete is the engine brake problem but be weary of deleting dd engines as rawze was saying.

If I’m not mistaken the 973 and 986 codes are for engine brake controller. Is this a ghg14 truck by chance? The cpc4 in a ghg14 Cascadia is common for giving issues with very f***** up problems