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Thanks guys

I understand that this is asking for a shot from the hip, so I'm just fishing here in case anyone has had a similar experience. I recently replaced the fuel shut off solenoid on top of the pump and it works fine. Before I had did that, the truck would not start for numerous reasons, as it had...

Thanks, gentlemen. Manually grounding the relay gave me the voltage at the bottom I was hoping for. I confirmed that the Lt Blu wire had continuity down to the module pin, so it apparently is the module. Now I have some run-away magic smoke from my resistor pack, so I guess I'll get those...

Thanks for responses, and happy Independence Day, all. So, truck is recently bought so i've not successfully started it yet. New batteries. New AC60's, Turns over solidly, good fuel supply through filter and at cylinder/injectors. Fuses are good. Meant to say... "...when blue applied to...

TM-20 Manual says to dismantle and ohm check resistors if 10-15V is not present at red (top) lead to GP relay. Most threads here suggest that 24V is proper until load is applied. I have 25V at the top and 12.5 at the pink/blk (with key on "run"), and my relay clunks when the blue is applied-...