Transmissions and Drivetrain Need help with your trans? Problems with your axle?

Anuto to manual... ECM need changed?

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Old Mar 26, 2005 | 07:06 PM
  #1  
90FormulaWS6's Avatar
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Joined: Feb 2003
Posts: 556
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From: Edison, NJ
Car: 1991 Camaro RS
Engine: 305 TBI
Transmission: WCT5
Anuto to manual... ECM need changed?

Im going from 700r4 on my 91RS to WCt5... will i need to change the ECM or not?
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Old Mar 26, 2005 | 08:21 PM
  #2  
kevinc's Avatar
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Joined: May 2000
Posts: 2,963
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Car: 1982 Z28
Engine: LS1
Transmission: T56
ECM is the same so no change needed, but you may want to change software. Check out the DIY-PROM forum.

When I swapped in a T56 on mine, idle behavior was strange until I burned a chip with manual trans bit set. It would "hang" the rpms while coasting to a stop, etc. Just a nuisance and not a show-stopper, but it was annoying.
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