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02-16-2020
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#1 |
 
Join Date: Jan 2006
Location: Decatur, AL
Posts: 1,122
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90 Where does this connector go?
Yeah, it's me on this 90 I bought. The PO had it worked on at multiple places for a no crank condition and they had all kinds of stuff wired into it, wiring connectors hanging etc. I am almost done with the wiring, I need help with where this ECM harness connector clips into. Can anyone help? Also, oil pressure is running high not out of range, is the instrument cluster pressure switch on the side of the oil filter housing? I assume that's why it is running high- when I finish this wiring I am going to tackle engine refinishing. Also, third brake light isn't working, I have not looked at it yet but from memory, I think there is a separate switch for the third light- that is next problem to tackle. (OP had vats bypass box of unknown origin - I removed that, starter wired into clutch with to a separate start button for when the key didn't work- ll that I clipped out and soldered the original wiring , including correct colors back in) - all done because of weak clutch switch- crazy! Thanks for all your help on this 90, I am sure more questions to come..anyway...here is the connector...
 https://imgur.com/a/XF7oMyK 
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Corvette95 Registry and Forum (*************) 1989 C4 Conv Wht/Gry Auto Hardtop Top Flight SOLD 1995 C4 Coupe Purple/Blk 6 Speed 1989 C4 Conv Wht/Red Auto SOLD 1996 C4 Conv Black/Tan Auto SOLD 1994 C4 Coupe Wht/Blk SOLD 1995 C4 ZR-1 White/Gry #278 Dual Dunn Head SOLD 1986 C4 Coupe Black/Red 4+3 SOLD 1990 C4 ZR-1 Red/Red #0454 |
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02-16-2020
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#2 |
 
Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,181
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Re: 90 Where does this connector go?
That is the Ignition Module diagnostic connector. That is wired correctly in your picture. It should have a dead plug on it.
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1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Shelby Series 1 - Wilwood Brakes Custom Interior NCM Lifetime Member #978 |
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02-16-2020
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#3 | |
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Join Date: Jan 2006
Location: Decatur, AL
Posts: 1,122
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Re: 90 Where does this connector go?
Quote:
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Corvette95 Registry and Forum (*************) 1989 C4 Conv Wht/Gry Auto Hardtop Top Flight SOLD 1995 C4 Coupe Purple/Blk 6 Speed 1989 C4 Conv Wht/Red Auto SOLD 1996 C4 Conv Black/Tan Auto SOLD 1994 C4 Coupe Wht/Blk SOLD 1995 C4 ZR-1 White/Gry #278 Dual Dunn Head SOLD 1986 C4 Coupe Black/Red 4+3 SOLD 1990 C4 ZR-1 Red/Red #0454 |
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02-16-2020
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#4 |
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Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,181
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Re: 90 Where does this connector go?
No it just hangs there as far as I know
__________________
1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Shelby Series 1 - Wilwood Brakes Custom Interior NCM Lifetime Member #978 |
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02-17-2020
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#5 |
Join Date: Sep 2018
Location: Groton, CT
Posts: 393
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Re: 90 Where does this connector go?
Mine (92) was just taped to the rest of the harness.
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1992 ZR1 #442, 2 tops, White, White, Haibeck 415, 3.90 gear, Coilovers 2021 Audi RS5, 2.9 V6 Twin Turbo, Auto, Black, Black 2021 Audi Q3, 2.0T, 8 spd Tiptronic, Navarro Blue metallic, Pearl Beige |
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02-21-2020
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#6 |
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Join Date: Oct 2019
Location: San Antonio, TX
Posts: 13
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Re: 90 Where does this connector go?
Hey. My 90 oil pressure ran high on the instrument cluster, too, almost all the time. I replaced the oil pressure sending unit on the top of the oil filter housing. The description I read is it is about the size of a roll of quarters, and that is exactly right. All it takes is removing the wiring harness and putting the new one on. It took a little patience as there isn't a ton of space, but what car repair doesn't take patience?
I think I got mine from Ecklers. Pretty cheap and easy change. Plenty of guidance here on the Registry. Good luck! |
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