North American Turbocoupe Organization

88 TC computer and big VAM swap?
TurboXbird Offline
I just pick up a 88 TC (auto) Computer and the matching big VAM unit for my 85 TC and was wondering if it just plugs right into my setup or what is needed to swap it in? I'm also swapping my C3 for a 5 spd this winter, while that make for any problems swapping it in? Thanks

GaryS#2 Offline
Posting Freak
I think it will work but if you want more power you need an LA3 comp from 5 spd.

I might need that comp you have.
(someone please read my off topic post)lol.
Grocery Getter/Rice Cooker.

philS Offline
Senior Member
Although the 60-pin plug in your harness will plug right into the new computer, a few wires have to be swapped at the plug.

The newer computer requires an ACT sensor which you should install in the intake manifold.

What fuel injectors do you have? The 88 computer is configured to run 35lb/hr injectors and your 85, depending on the build date, might have green-top (30lb/hr) or brown-top (35lb/hr).

The 88s have a BOO sensor (at the brake pedal) that you will want to install or else the computer will give a trouble code.

Lastly, you will need to install a premium/regular fuel switch, or else ground the pin so it's always in premium or regular.

I don't have the pin numbers handy, but they are around ... maybe in the FAQ?

86 TC, 73 Mini, 72 Mini Van project
Click here to beat a ricer.
Did you hear about the Lucas powered torpedo? It sank.

86 TC, 73 Mini, 64 Mini Van, Saturn wagon
Click here to beat a ricer.

Pete D Offline
You can probably find some of the wiring info here:
Pete Dunham


Walsted Offline
Posting Freak
This page may help as well.

Mike Walsted - NATO member
1986 5-speed TurboCoupe and 1985 5-speed XR7
Mike Walsted - Sold my 1986 5-speed TurboCoupe

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