Wiring Questions
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Guest
Wiring Questions
Well as some of you know I had done a swap from an 89 GTU to an 88 GTU. I also swapped out the wiring harnesses as well but I have a few wires left over.
The 88 had 2 wires running down the passenger side from the main plug and the 89 has 4. Also the one plug that goes into your wiper motor. On the 89 it was a 6 wire setup and the 88 its a 4 wire. My question to anyone that might be able to help is what are these extra wires for? The extra wires and blue and red where they would connect to something.
Everything seems to operate properly now that I've cut and spliced wires to color match. However I still have them extra ones and would really like to know what they are to. If anyone has a wiring diagram or knows where I can find one it would be most helpful.
-Cy
The 88 had 2 wires running down the passenger side from the main plug and the 89 has 4. Also the one plug that goes into your wiper motor. On the 89 it was a 6 wire setup and the 88 its a 4 wire. My question to anyone that might be able to help is what are these extra wires for? The extra wires and blue and red where they would connect to something.
Everything seems to operate properly now that I've cut and spliced wires to color match. However I still have them extra ones and would really like to know what they are to. If anyone has a wiring diagram or knows where I can find one it would be most helpful.
-Cy
Wiring Questions
I would think the wipers on the 89 had delays where as the 88 didn't..? Although, all GTU's should have had wiper delays, power windows, power locks.
All the 88GTU's I seen came with delays.
All the 88GTU's I seen came with delays.
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rweatherford
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- Joined: Wed Apr 25, 2001 5:39 pm
- Location: Shelbina, MO
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Wiring Questions
Intermittant wiper?
Rex Weatherford
92 Beretta GTZ Quad4 Turbo / 5-speed (sold)
Best 1/4 ET =  13.523 @ 105.16 mph
07 Mazda 5 Black on Black (it's slow)
92 Beretta GTZ Quad4 Turbo / 5-speed (sold)
Best 1/4 ET =  13.523 @ 105.16 mph
07 Mazda 5 Black on Black (it's slow)
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gtuturbo
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- Joined: Sat May 05, 2001 12:15 am
- Location: SW Michigan
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Wiring Questions
(DrkbwtiPrfm25 @ Mar. 23 2006,18:26)Q
U
O
T
EWell as some of you know I had done a swap from an 89 GTU to an 88 GTU.  I also swapped out the wiring harnesses as well but I have a few wires left over. ÂÂÂ
The 88 had 2 wires running down the passenger side from the main plug and the 89 has 4.  Also the one plug that goes into your wiper motor.  On the 89 it was a 6 wire setup and the 88 its a 4 wire.  My question to anyone that might be able to help is what are these extra wires for?  The extra wires and blue and red where they would connect to something. ÂÂÂ
Everything seems to operate properly now that I've cut and spliced wires to color match.  However I still have them extra ones and would really like to know what they are to.  If anyone has a wiring diagram or knows where I can find one it would be most helpful. ÂÂÂ
-Cy
If this helps, the 1987-88 had the washer motor within the wiper gearbox, but starting in 1989 the washer motor was built into the washer fluid reservoir.
U
O
T
EWell as some of you know I had done a swap from an 89 GTU to an 88 GTU.  I also swapped out the wiring harnesses as well but I have a few wires left over. ÂÂÂ
The 88 had 2 wires running down the passenger side from the main plug and the 89 has 4.  Also the one plug that goes into your wiper motor.  On the 89 it was a 6 wire setup and the 88 its a 4 wire.  My question to anyone that might be able to help is what are these extra wires for?  The extra wires and blue and red where they would connect to something. ÂÂÂ
Everything seems to operate properly now that I've cut and spliced wires to color match.  However I still have them extra ones and would really like to know what they are to.  If anyone has a wiring diagram or knows where I can find one it would be most helpful. ÂÂÂ
-Cy
If this helps, the 1987-88 had the washer motor within the wiper gearbox, but starting in 1989 the washer motor was built into the washer fluid reservoir.
Paul Keller
1988 Chevrolet Beretta GTU (turbocharged) (bought new in August 1988)
1966 Oldsmobile Cutlass Convertible
2020 Chevrolet Equinox LT
2017 Kia Sorento V6 AWD
2017 GMC Acadia SLE-1
1988 Chevrolet Beretta GTU (turbocharged) (bought new in August 1988)
1966 Oldsmobile Cutlass Convertible
2020 Chevrolet Equinox LT
2017 Kia Sorento V6 AWD
2017 GMC Acadia SLE-1
Wiring Questions
Yeah, Paul got it. The wires for the 1989 washer fluid pump are red and blue. So...what did you swap out? Just the wiper motor? The entire engine bay harness? I'm guessing I missed an earlier post.
-Jeff P.
Black '88 Beretta GT
Spice Red '06 GTO
Previously Owned:
'89 GT, '91 GT, '92 GTZ (12.95@105 mph), '01 Bonneville SSEi
Black '88 Beretta GT
Spice Red '06 GTO
Previously Owned:
'89 GT, '91 GT, '92 GTZ (12.95@105 mph), '01 Bonneville SSEi
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Guest
Wiring Questions
Entire engine bay harness ... guess that would make sense then about the pump being in the bottle. Becuase the red and blue both come out of the main harness only one end was plugged into that 6 prong plug going into the wiper motor. Thanks for the help guys