I just put in a newly rebuilt motor. When i put the batt in i had a couple of electrical systems that did not work, meanwhile i had a couple of systems that did work.

Systems that work:
Dash lights
Parking lights
horn
Blinkers
door locks

Systems that don't work:
Starter
ECU
Headlights
Fuel pump???
Window Regulators

I have already gone through and re-done all of the grounds that attach to the motor as well as the body(3 under ratsnest, one on drivers side of motor, one under fuse\relay blocks, one from uim to fire wall). I have also used some 4 gauage cable to add some more body and motor grounds. I was wondering if any one had delt with this before or if any one had any ideas. I have already checked all of the fuses and they are all ok. I am ready to.....well i will leave that up to you. As usual all help is appriciated. Thanks.

 

I would start at the ECU, it controls the starter switch...Work from your biggest problem down.

Check that you have the correct Voltage at the ECU and also check for resistance, as you may have cut a wire or somethin.

If you have power to the ECU hotwire, the issue is somewhere after the ECU and the starter, and visa versa. From there, just track the harness and check various points for both V/OHMS.

Also, don't overlook the simple things.... Like, did you bend/break a PIN on the ECU when you plugged it back in?

Is the connector pushed in all the way?

Also, make sure that your Ignition Hotwire is not wired or touching to ground, this would cause the ECU to read 0V and very high OHMS, in turn possibly disabling other circuits that may loop off of that PIN (Fuel Pump, etc...)

Im no expert, but thats all I got...

 

I forgot, also...What happens if you bypass the entire starting system? Jump the starter?
Does the starter make any clicking sounds? If not there is no power coming from the clutch switch or the ignition switch, start there and work backwards if that is the case.

And maybe a long shot, but do you have an alarm? Or the factory alarm?

 

I never unpluged or removed the ECU. I only unpluged the sensors from the motor and went from there. I just do not understand how the ECU issue is related to the issue that i am having with the window regulators.

 

any one have a spare known good main engine harness that i could borrow to see if maybe a wire inside the loom was britle and broke when i was moving it out of the way.