I also purchased the OBD Fusion app with Ford enhanced diagnostics. Any help would be greatly appreciated, thank you.
It's a 1997 E350, a former ambulance, you can see it as my avatar on this forum. The WTS light has never come on, not sure if the previous owner disconnected. When I turn the ignition on, I can hear the fuel pump going, see my regulated return gage go up to 65psi and after an audible "click" or two (probably the glow plug relay) the "service engine soon" light comes on. I don't konw that thos other wires are but I will look today. The green looks like a fusible link. When I changed the relay, I did some wire repair, not knowing what the wires were, I just repaired them and put them back where they were. Again, it used to run like this. It would really smoke a lot when it started, not white smoke, probably because of improper combustion. I found out the turbo "butterfly" was stuck barely open, so I removed it, got rid of the actuator and sealed it up. I then purchased the "fooler resistor" from diesel orings and connected that to the EPV connector that used to be connected to the pedestal. I'm gonna look at the Glow Plug relay document the wiring and test it. I'll keep you posted. Any other ideas? I've been cranking the motor for 30 seconds and the oil pressure gage goes up halfway. I took my ICP out and made sure it wasn't clogged. My Crank sensor plug won't "click" into place but I cleaned it yesterday, made sure I was getting power to it and taped it back to the connector. While I was there, I totally cleaned the ground wire going to the block and noticed there was another ground wire that was caked with oil connected to the body so I put a waterproof ring connector on that and reconnected. I was hoping that cleaning off those ground wires would have got it to start. Always seems to be a grounding issue or short with crank no starts. I'm all ears if you have any other ideas. Thanks for your help and I'm happy to give you my cell number so we can talk.What year truck is this? Are you getting the Wait-to-Start (WTS) light coming on when the key is first turned to WTS? If not, check underhood fuse #22. Many times if that fuse is blown the fuel heater has shorted. Disconnect it, replace the fuse and see if the light comes on. What are those other wires (green and the smaller one on the other large terminal) going to? Even though it may be warm out, a cold start will still need the plugs. Cheers!