Father inlaw gave me a 92 mighty max before he passed, had just over 130K when I got it, at 180 K the head gasket let go, removed the head and surfaced the head, valve guide seals and new lifters. truck now has 250 K and is big time trouble to crank cold, no cold start working. I have tried to scan it but the scanner says the scan port is bad. For grins I had another ECM so I replaced it with no help. What's weird as heck is if you disconnect the battery for a day or so the truck will go back to starting with the cold start mode. New Map sensor installed a few months ago. Its like the ECM doesn't recognize the engine is cold and you crank and crank till it finally runs. What do I need to check ? It reminds me of trying to crank a Mercury 300 drag race engine cause they don't have a cold start mode. Any help would be much appreciated. Paul.