Yep tht's right, my '91 SC still has a Hot start issue, and it's now driving me nuts.. I know i bought this car for a challenge but DAMN!!
Replaced with NEW:
Sparkplug
Sparkplug wires
Fuel Filter
Cam Sensor
DIS module
ECT sensor
TPS (?? I think i did?)
On the car is a '93 PN (Read OE Ford) Crank sensor that looks to have been replaced recently (IE Loom is clean, Wires clean Sensor itself clean), Balancer is looking good with no cracks in the rubber, and spins straight..
Fuel Pressure is good, 40ish KOEO and 30ish KOER (Mechanically 100PSI guage) FP held good, after like 30-45 minutes it was still in the mid 20 PSI range, instanly came up when key was turn to run, and stayed good during cranking and starting..
When Cold the car starts great, sometimes with in a quick hit of the key.. once warm it can take like 5 or more seconds of turning it over to get it to start.. with the odd times it running at around 400rpm, and if left Black smoke will start coming out of the exhuast and it can run like that for some time.. with out throwing a code either!!!! But usually if you press the gas pedal a hair, and it gets up to like 500-600RPMS it'll catch fully and go up to like 1500rpms and settle back down to it's proper RPM like if nothing happened
Ground issue? Even thou i upgraded the factory grounds (4ga from battery to chassis and chassis to engine along with Battery to Alternator (Ground and Postive))
MAF sensor?? Down side i have no spares unless one from a '89 XR7 will work?
O2 Sensors?? (like it reads those for the first few seconds of running)
ECU itself??
Thanks
Replaced with NEW:
Sparkplug
Sparkplug wires
Fuel Filter
Cam Sensor
DIS module
ECT sensor
TPS (?? I think i did?)
On the car is a '93 PN (Read OE Ford) Crank sensor that looks to have been replaced recently (IE Loom is clean, Wires clean Sensor itself clean), Balancer is looking good with no cracks in the rubber, and spins straight..
Fuel Pressure is good, 40ish KOEO and 30ish KOER (Mechanically 100PSI guage) FP held good, after like 30-45 minutes it was still in the mid 20 PSI range, instanly came up when key was turn to run, and stayed good during cranking and starting..
When Cold the car starts great, sometimes with in a quick hit of the key.. once warm it can take like 5 or more seconds of turning it over to get it to start.. with the odd times it running at around 400rpm, and if left Black smoke will start coming out of the exhuast and it can run like that for some time.. with out throwing a code either!!!! But usually if you press the gas pedal a hair, and it gets up to like 500-600RPMS it'll catch fully and go up to like 1500rpms and settle back down to it's proper RPM like if nothing happened
Ground issue? Even thou i upgraded the factory grounds (4ga from battery to chassis and chassis to engine along with Battery to Alternator (Ground and Postive))
MAF sensor?? Down side i have no spares unless one from a '89 XR7 will work?
O2 Sensors?? (like it reads those for the first few seconds of running)
ECU itself??
Thanks