Thanks Thanks:  0
Likes Likes:  0
Dislikes Dislikes:  0
Results 1 to 2 of 2
  1. #1
    New Member
    Join Date
    Sep 2018
    1984 coupe
    Post Thanks / Like

    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
    Join Date
    Sep 2000
    "Manchestah" NH
    1990 ZR-1 - Bright Red / Black
    Post Thanks / Like


    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
    Corvette Action Center
    Cadillac V-Net
    Cadillac XLR Net
    Torque About It
    Torque Network
    NCRS Member #27792
    "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

Similar Threads

  1. computer upgrade
    By jimbil208 in forum C3 Technical and Performance
    Replies: 8
    Last Post: 07-07-13, 11:42 AM
  2. 1984 Vette computer compatability
    By stevo in forum C4 Technical and Performance
    Replies: 3
    Last Post: 09-05-12, 09:30 PM
  3. 1984 ECM Upgrade
    By MyFlaVette in forum C4 Technical and Performance
    Replies: 2
    Last Post: 05-14-11, 03:44 PM
  4. 1984 700R4 upgrade lit
    By Robert in forum C4 Technical and Performance
    Replies: 5
    Last Post: 11-21-07, 09:24 PM
  5. Replies: 13
    Last Post: 07-15-04, 05:46 AM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts