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Old 04-02-2012, 05:18 PM   #1
Blindedlegacy
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Update.,new bat alt and belts and it still dies with an electrical load after hitting operation temp
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Old 04-02-2012, 05:37 PM   #2
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I was talking to one of the techs at my job. Told him the story about my car from the begininh. Jumped my bros car the around the time I got my supra. That same day my coolant temp gauge stopped working. 2 techs heard that and gasped and said I might have fried my computer
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Old 04-02-2012, 11:27 PM   #3
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Unlikely... EFI relay or fusible link are more likely and should be inspected.

"Techs" from where?
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Old 04-02-2012, 11:36 PM   #4
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Quote:
Originally Posted by cre View Post
Unlikely... EFI relay or fusible link are more likely and should be inspected.

"Techs" from where?
Cavalier ford. And you know which pin outs are for the ground circuits so I can at least I can do the voltage drop test
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Old 04-03-2012, 01:46 AM   #5
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Those dealership auto techs are always such drama queens... Unless... I hope you're not just talking about the lot techs.

http://www.cygnusx1.net/Supra/Library/TEWD/MK3/
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Old 04-03-2012, 02:19 AM   #6
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Quote:
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Those dealership auto techs are always such drama queens... Unless... I hope you're not just talking about the lot techs.

http://www.cygnusx1.net/Supra/Library/TEWD/MK3/
It was 2 of em. But it would make sense. I found a guy with the exact same issues as me on a different forum and I msged him and now waiting for a response. That is the 1990 so I didn't think it would apply to me but u notice that the ground wires are white and black so is it the same for the ecu
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Old 04-03-2012, 05:26 AM   #7
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There are very few differences between pre89 and 89+ GE electrical systems... unlike the GTE. You may go by that online manual and if you get hung up due to a discrepancy just ask.

I suspect either a bad EFI relay or a bad AFM. Try testing them both after heating them up with a hairdryer. Another possibility would be a problem with the fuel pump relay and resistor pack. You can bypass both at the harness to test if this is the case.
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