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1984 computer upgrade

paulkobilsek

New member
Joined
Sep 3, 2018
Messages
1
Location
CA
Corvette
1984 coupe
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?
 

Rob

Site Administrator
Staff member
Administrator
Joined
Sep 16, 2000
Messages
13,589
Location
New Hampshire
Corvette
1990 Corvette ZR-1
Welcome to the Corvette Action Center!

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

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