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How to troubleshoot TFI module


New Member
Hello to all. Glad to be a member of the Forum. I am the original owner of a 89 5.0 LX Sport. My car has many mods which I installed myself. Mileage is about 185,000 kilometers. Last Fall before putting my baby in hibernation, I experienced a stall/no start condition shortly after starting/running it around the block. Once it cooled off it started and ran fine, although I took it directly home. It happened once a bit earlier when I ran the car in the garage until it warmed up. Fuel pressure was fine so I assume it is some kind of electrical issue. TFI trouble?