XFI Speedo and TCC dilemma
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Junior Member
Joined: Jan 2010
Posts: 17
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From: Philadelphia, PA
Car: 1987 IROC Z
Engine: L98 350
Transmission: 700R4
Axle/Gears: 3.42
XFI Speedo and TCC dilemma
Well i am proud to say I am almost finished my XFI ECM setup into my 87' IROC TPI!! I have two problems unfortunately. The speedometer to my knowledge was controlled by the factory ECM and now there is no solution to use it on my new XFI system.....Secondly, the Three wires on my 700R4 that controlled Torque Converter lockup are not able to be spliced or connected with my XFI setup. Are there solutions to these problems? I have tried again and again to contact FAST to no avail...Any help is appreciated THIRD GEN FAMILY...
My email address is tonydespirito@gmail.com
My email address is tonydespirito@gmail.com
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From: Chasing Electrons
Car: check
Engine: check
Transmission: check
Re: XFI Speedo and TCC dilemma
An '87 IROC will most likely have a cable driven speedometer. Even if it doesn't the ECM doesn't buffer the VSS. There would be a 4-out buffer box under the dash.
For TCC lockup hit the transmission board here. Several good threads on how GM did it without an ECM.
RBob.
For TCC lockup hit the transmission board here. Several good threads on how GM did it without an ECM.
RBob.
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