TreeFarm

ECM is original as far as I can tell. Injectors I put in 20K miles ago. New rv275s, that doesn't mean they haven't gone bad though. It seems exactly like the anti stall isn't working correctly. Its just weird to me that it only happens when the truck is physically moving down the road regardless of speed. I don't know what the Cummins ECM is looking at to determine this stuff or if it even takes into account VSS in its control. If it was an LS I could tell you all about the features in tuning that have to do with VSS and can make this happen.

I have pulled this fuse in the past when my door key lock got wet and was shorting out. It was sending unlock signals constantly making my locks click. Pulling the fuse on my truck caused the engine to start and then shut off 1 second later. This fuse sent power to my factory alarm and it would trigger the immobilizer without the power.

2001 Ram 2500 6 speed. 240K miles. Intake, Exhaust, Pacbrake PXRB, Bosch RV275 injectors 20K miles old, FASS 95 at 14/15 PSI. Re-man vp44 of unknown millage or manufacture. MoparMan high idle switch. No tune or engine other mods. Within the last 1000 miles I have noticed a new problem with my truck. With the exhaust brake active coming to a stop when I push in the clutch the engine will stall. Like the brake is backing up the engine too much. I don't think its actually the brake causing the problem though, just making it more apparent by stalling the engine. In my trouble shooting process I have found the symptoms depend on when the truck is rolling or not. It doesn't matter if the engine is warmed up or cold. I can be going 10mph or 60 mph and push in the clutch and let off the throttle. This problem is not dependent on clutch position. It is not dependent on if I have my foot on the brakes at all. The truck returns to idle normal if the truck is not moving. It only stumble if its moving. Basically Truck rolling, push in clutch with exhaust brake active = stalled engine, or extreme dip to 3/400 rpm and climb back to idle. Truck rolling, push in clutch with exhaust brake off = engine returns to idle with about 100/200 RPM dip and climb back to normal idle. Noticeable dip. Truck stopped, bring up to 1500/2000 rpm and let off with exhaust brake active = perfect return to idle, 0 to 50rpm dip and climb back to normal Truck stopped, bring up to 1500/2000 rpm and let off with exhaust brake off = perfect return to idle, 0 to 50rpm dip and climb back to normal The fact that there is a noticeable dip with the exhaust brake off while rolling makes me think its not exhaust brake related but that there is something else messing with the fueling. What if any sensors should I look at that could be messing withe the fueling depending on vss. I don't have any codes or other problems. VSS works fine, no brake light on dash, cruise control/speedometer are fine.