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Thread: LS1 GTO ecm pin 44, rev lock out
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06-28-2021, 10:12 AM #1
- Join Date
- Jun 2021
- Location
- SW Ga.
- Posts
- 3
Inferno Orange- 1971 Corvette
LS1 GTO ecm pin 44, rev lock out
Afaik, pin 44 goes to ground at low speed or stopped to energize the lock out solenoid. I'm getting 6k ohms on the ground side with ign on and 12vcd on the other side of the solenoid. Doesn't seem to be close enough to ground to work. Original solenoid seemed stuck when I pulled it out but a few operations on the bench with a battery and it free'd up. I replaced it with new anyway. Any ideas? I don't need it to be the ecm, it's been flashed to work in my 71 vette and everything else works great. But it is an 04 gto motor/ecm.
Any help would be appreciated.
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10-16-2021, 01:41 PM #2
- Join Date
- Jun 2021
- Location
- SW Ga.
- Posts
- 3
Inferno Orange- 1971 Corvette
Solved
As I suspected, it was the ecm. It was from an auto trans car, manual trans parameters weren't programmed and that included instructions for pin 44 lockout. Reprogrammed with Hp Tuners and dyno tune and the lockout works fine now but the tune isn't as hot as it was. Could have been a borderline grenade tune before but by god it was stupid impressive.
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