It's the crank sensor!
Join Date: Nov 2007
Location: Central Minnesota
I agree with Tim that the throttle position sensor is suspect. They HATE water.
I generally don't recommend washing the engine bay unless you cover all electronics appropriately and even then you have to be careful......
99 Cherokee, 4.0 AW4, NP242
Past Jeeps: 49 Willys, 81 Scrambler, 88 Comanche
Without "data", all you have is an opinion!