Originally Posted by
F250RD
I repaired my ficm same way, IDS tells me I have 45v on KOEO, but when I go to KOER it drops to 29v. I am going to do a cold start tommorow and see if it starts up fine, after I repaired it the truck fired right up, but at about 10 this morning I put in a known good ficm and drove the truck around a bit so it was already warm. Will come back with results
It sounds like you are one of the many where just re-soldering didn't work. It may well be that neighboring components (mosfets, caps, various diodes, etc) are damaged. Let me know if we can help. It's worth ensuring that your batteries and alternator are in tip-top shape as well. Good luck!!
Ed