New project with electrical issues.

Picked up a new project truck today. It’s got some electrical issues as a result of the previous owner jump starting a humvee (24volt). He tried replacing the ECU spark plugs and a bunch of fuses.


The symptoms are a very rough idle that eventually stalls out and multiple misfire codes.


I have verified the fuses are good and cleaned the Maf. It’s got 325k on it and 130k on the timing belt so my thoughts are to baseline it with new timing belt-water pump and coils. But it would be good to have some direction before start throwing parts at it. Anyone dealt with this before?

 

Welcome from NY.
Post you question in here.....
https://www.tundras.com/forums/1st-gen-tundras-2000-2006.2/

 

Welcome from LA (Lower Alabama)! It's possible he burned out some relays with that overvoltage of the coils.