My Dakota with 140K miles seems to just shut off randomly, whether on the road or in the driveway. Codes thrown are P0300, P0335, P1128, and P1129. Have already replaced the MAP sensor, camshaft sensor, and crankshaft sensor because those are cheap. Tested fuel pressure and swapped the fuel pump relay for another known working relay, no luck there. When reading live data from the scan tool, throttle position % is visibly wrong from observing the butterfly, LOAD_PCT is at 43% when idle, and spark advance fluctuates 30 degrees when idle. I've jiggled every single harness I can get my hands on, the PCU and TIPM have no corrosion on the connectors. Truck has already been through two mechanic shops.
I just want my dang truck back!
Oh, and seemingly this most often occurs when it's wet/humid out, either rain or cool foggy mornings.
Figured out the problem. There is a fault in the wiring going to the crankshaft position sensor. When I bumped the cable with a stick, the truck shut off instantly.
Check for a weak battery or poor alternator output.
