I've got an 86.5 N/A Supra, head gasket has been done, car just rolled over 90k miles, and I'm at witts end trying to figure out why it wont run, first
Parts replaced searching for the problem:
Fuel pump
Fuel filter
ECM
Symptoms:
I went to the car wash a couple weeks ago when it was nice, so there was a line. Pulled in, shut my car off. When a bay opened up i went to start my car, and it was idleing between around 800 and 1500 rpm's, bouncing setadily and quickly between the 2. I pulled it in anyway, washed it, when I went to start it, nothing. turned over, but wouldnt sputter or even attempt to start. I pushed it out, didn't see anything obviously wrong. sat for 10-20 minutes, and it started right up, purred like a kitten. Jumped in, rushed home while I had it started. Got home, parked, shut it off, started it up, ran like crap, barely idleing over around 600 rpm. Then the above 3 symptoms happened again, in the same order before it wouldn't start at all. Put fuel pump/filter in, finished, put in gas, started it up, ran great. Shut it off, put all my tools away, tried again, nothing, wouldnt start. Hauled it to the shop, he tested the relays, fuses, checked wiring. Put in ECM, didnt fix it. there is no power to the diagnistic port, and the fuel pump isn't turning on when you crank. The check engine light isn't on when the switch is in the run position (so you can't check codes) the fuel pump can be supplied with 12v dirrectly and the car will start, but runs very rich. I'm out of ideas, I feel like the diagnistic port not getting power is where i need to start, but I'm stumped, unless the switch is bad, causing the port to not get power? Any sugestions/things to check would be greatly appreciated.
Parts replaced searching for the problem:
Fuel pump
Fuel filter
ECM
Symptoms:
I went to the car wash a couple weeks ago when it was nice, so there was a line. Pulled in, shut my car off. When a bay opened up i went to start my car, and it was idleing between around 800 and 1500 rpm's, bouncing setadily and quickly between the 2. I pulled it in anyway, washed it, when I went to start it, nothing. turned over, but wouldnt sputter or even attempt to start. I pushed it out, didn't see anything obviously wrong. sat for 10-20 minutes, and it started right up, purred like a kitten. Jumped in, rushed home while I had it started. Got home, parked, shut it off, started it up, ran like crap, barely idleing over around 600 rpm. Then the above 3 symptoms happened again, in the same order before it wouldn't start at all. Put fuel pump/filter in, finished, put in gas, started it up, ran great. Shut it off, put all my tools away, tried again, nothing, wouldnt start. Hauled it to the shop, he tested the relays, fuses, checked wiring. Put in ECM, didnt fix it. there is no power to the diagnistic port, and the fuel pump isn't turning on when you crank. The check engine light isn't on when the switch is in the run position (so you can't check codes) the fuel pump can be supplied with 12v dirrectly and the car will start, but runs very rich. I'm out of ideas, I feel like the diagnistic port not getting power is where i need to start, but I'm stumped, unless the switch is bad, causing the port to not get power? Any sugestions/things to check would be greatly appreciated.