Akodo
Junior Member
So, I installed a new engine in this truck. 5.9L. At first I had no crank, but after cleaning the main power feed to the fuse block, and running a new ground to the starter, I can now turn the motor over all day long. But the fuel pump isnt coming on, nor the injectors, and no spark. All of which, of course, is controlled by the ECU. So I tried to hook my code scanner up, and I cant talk to it! I can read the ABS, BCM, etc. Pretty much anything but the powertrain controller. It SEEMS like it isnt even powering up. How in the world do I trouble shoot this? Any ideas? What could cause these issues besides the PCM?