1989 5.0 GT Manual.
Advanced electrical is not my forte. :smile2:
Know this is a shot in the dark just hoping to find someone that has seen this before since it seems pretty specific. Can't find a troubleshooting list that has this symptom listed.
It always starts and drives. Sometimes when I turn the key and its cranking but I can tell it's not going to fire, while cranking I put the gas pedal to the floor and it starts right up. From what I understand it should not do this as flooring the pedal is supposed to kill the fuel injectors to clear a flood.
These facts could be related but I don't know for sure:
While a friend had his laptop connected could see that the TPS (throttle position), ECT (coolant temp), ACT (air temp) sensors are all losing their ground ONLY while the starter is cranking. All 3 sensors share the same ground, the "ref ground", MAP and EGR also use same ground. **Keep in mind it starts normally half-or-most of the time without flooring the pedal. While hot and cold.
Recent changes:
I replaced a bad ECT (coolant temp sensor) that fixed a no start when hot issue.
I replaced a dead old Ford performance mini starter that had power wire with a new SVE mini starter that has a trigger wire. That positive wire goes to the opposite side of the starter solenoid as the old starter.
Thanks,
Advanced electrical is not my forte. :smile2:
Know this is a shot in the dark just hoping to find someone that has seen this before since it seems pretty specific. Can't find a troubleshooting list that has this symptom listed.
It always starts and drives. Sometimes when I turn the key and its cranking but I can tell it's not going to fire, while cranking I put the gas pedal to the floor and it starts right up. From what I understand it should not do this as flooring the pedal is supposed to kill the fuel injectors to clear a flood.
These facts could be related but I don't know for sure:
While a friend had his laptop connected could see that the TPS (throttle position), ECT (coolant temp), ACT (air temp) sensors are all losing their ground ONLY while the starter is cranking. All 3 sensors share the same ground, the "ref ground", MAP and EGR also use same ground. **Keep in mind it starts normally half-or-most of the time without flooring the pedal. While hot and cold.
Recent changes:
I replaced a bad ECT (coolant temp sensor) that fixed a no start when hot issue.
I replaced a dead old Ford performance mini starter that had power wire with a new SVE mini starter that has a trigger wire. That positive wire goes to the opposite side of the starter solenoid as the old starter.
Thanks,