'91 T/A TPI going into a '84 T/A need Tranny help!
Thread Starter
Joined: May 2005
Posts: 83
Likes: 4
From: Tucson, AZ
Car: '84 Trans am ‘86 Iroc
Engine: 305 auto, 305 auto,
Transmission: Automatic
'91 T/A TPI going into a '84 T/A need Tranny help!
I'm putting in a '91 TPI (speed density) into a '84 Trans am, I'm replacing everything including fuel lines, tank, pump, motor, and TPI unit/wiring. I have the mechanical speedo, and the 700r4 from the '91 is a electronic sender. Will that have any effect on the ECM if I put the original 700r4 to match the mechanical speedo? What would be the better way to go? Will the ECM have a hard time adjusting to the speed, with out the speed sensor? Any help will be greatly appreciated, Thanks Chris
Joined: Nov 1999
Posts: 1,790
Likes: 22
From: Monroe,NC
Car: 90 Formula
Engine: 305
Transmission: 700R4
Axle/Gears: 9 bolt/3.27
Re: '91 T/A TPI going into a '84 T/A need Tranny help!
You'll have to use one of those converters to switch it to an electronic signal. Shouldn't be difficult, just be sure to get one with a 2000 pulse per minute signal.
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