1990 vs 1991 camaro body harness....

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07-31-2015, 08:02 PM

amc91z

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Location: Amarillo, TX

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Car: 1991 Z28

Engine: 383

Transmission: TH350

1990 vs 1991 camaro body harness....

Anyone know if there is a difference in the way a 1990 Iroc body harness and a 1991 Z28 body harness would be pinned at the bulk head connector? I have found the 1990 bulk head connector pin diagram but cannot find the 1991. Any help is greatly appreciated.
Thanks,
Adam

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08-02-2015, 09:41 AM

John in RI

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Car: 1984 Camaro Berlinetta

Engine: LT1

Transmission: T56 6-speed

Axle/Gears: 4.11 LS1 Rear End

Re: 1990 vs 1991 camaro body harness....

These are from the 91 service manual,

Here is the C207 Dash-to-ECM connection: ( should be the same from 90-92 - double check to be sure !! )

1990 - 1992 C207

PIN Color From / To (Notes)
A Brown ( TBI )
B* Pnk (Red) INJ1 TBI (TBI)
B* Pnk/Blk INJ1 (V6 / TPI)
C Brn/Wht ECM / CE Light
D Grey Speed ECM to Cluster (Not with TBI)
E Wht/Blk ALDL (pin B) / ECM (test)
F Pnk/Blk ECM fuse / ECM
G* Pink/Blk (white) INJ2 TBI (TBI)
G* Pnk/Blk (INJ2 V6 TPI)
H* Tan/Blk ALDL / TCC-ECM (auto)
H* Tan/Blk ALDL / Upshift (stick)
J Org ALDL (pin E) / ECM
K Brown ECM / Buffer (Only TBI)
L Drk Blue Vats to ECM
M Org Interior Lights
N Org/Blk ECM / P/N switch
P Red Speed Sensor (Not with TBI)
R Ppl/Wht Crank Fuse / Cold Start-(only TBI)

Good Luck !