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  1. #1
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    Default 1984 computer upgrade

    Many year ago I upgraded my '84 computer to a later (faster) 1990 TBI truck computer to complement extensive mechanical upgrades. This required re-wiring the plug to the computer. In tracing some wiring to the computer, I removed the computer, and in the process, one wire backed out of the plug and I didn't see which pin in the plug it came from. I traced the wire (purple) back to the MAP sensor, so it's the MAP sensor wire. I need to find which position in the plug it goes to. The computer came from Turbo City, which is now out of business, but the info on the computer identifies it with the following information. Year=1990, model=GM, 3rd vin #=C, 8th vin #=K, 10th vin=L. Can anyone help find the position where the MAP wire goes, or identify the GM model the computer is from so I can find a correct wiring diagram?

  2. #2
    Site Administrator Rob's Avatar
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    Welcome to the Corvette Action Center!

    I'm going to move your thread into the C4 Tech forum for greater exposure.




    Rob Loszewski, Owner & Site Administrator
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    "Let your plans be dark and impenetrable as night, and when you move, fall like a thunderbolt." - Sun Tzu
    1990 Chevrolet Corvette ZR-1 , 350 Stock ZF 6-speed. Stock Bright Red

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