question about tcc wire up
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Junior Member
Joined: Feb 2006
Posts: 59
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From: Alabama
Car: 89 Supra
Engine: Tbi 350
Transmission: 700R4
question about tcc wire up
Got a quick qestion about the tcc wire up. I'm using the 7747 ecm with a stock 350/700R4 in a project car. The wiring harness I got didn't have the tcc plug still hooked up. So I have a new plug but don't know which wires need to go where. And I currently don't have vss. Does the ecm need vss to make the clutch lock up. Thanks
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iTrader: (4)
Joined: Mar 2007
Posts: 860
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From: Tallahassee, Florida
Car: '86 Trans Am and '03 S-10
Engine: 355ci and 4.3l
Transmission: 700R4 and NV3500
Axle/Gears: 7.625/3.42 Auburn and 8.5/3.08 Gov-
Re: question about tcc wire up
Factory ecm uses vss, tps and brake switch to lockup the converter. Maybe the vac switch too.
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