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Old Nov 19, 2005 | 05:39 PM
  #1  
IROCZ28KevinZ's Avatar
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From: Sedalia, MO
Car: 1991 Z28 convertible
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Transmission: TH-700R4
Axle/Gears: 3.73 posi 4th gen 10-bolt
Question about gauges wiring

Hey everyone I am in the middle of swapping a 92 dash into my 88 camaro. i am DETERMINED to use the factory 92 gauges. However, I need some info to splice the 92 gauges wiring into my car.

I need to know if someone out there has a listing of what each wire in the 88 cluster does. For example, if a pink/black wire is for the oil pressure, what wire in the 92 cluster does that? This is so I can splice it into the car and get it working.

If ANYONE can help me I would really appreciate it.

Kevin
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Old Nov 19, 2005 | 06:26 PM
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From: MD
Car: '88 IROC-Z medium orange metallic
Engine: L98
Transmission: 700R4
Axle/Gears: 3.27
Not to be an ***, but a Chiltons or a factory service manual would be your best be. Something with good wiring schematics
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Old Nov 19, 2005 | 06:58 PM
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From: conway, s.c.
Car: 1989 Iroc-Z
Engine: 5.7L TPI
Transmission: 700R4
Chiltons would be of virtually no use in this case since they are too generic in their wiring schematics. He needs a schematic of the pin connectors for the 88 and 92 instrument clusters.
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Old Nov 19, 2005 | 08:33 PM
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IROCZ28KevinZ's Avatar
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From: Sedalia, MO
Car: 1991 Z28 convertible
Engine: 305 TPI
Transmission: TH-700R4
Axle/Gears: 3.73 posi 4th gen 10-bolt
Hey guys thanks for the advice. Yeah I have the Chiltons but no use. What me and my friend decided MIGHT work was to put the connectors in the 92 gauges and physically trace each wire to its path on the printed circuit to decipher what does what. We're about to do the same for the wiring in my car and then start matching each wire with the right one. Hopefully this all works out and I'll have a fully operational 92 gauge cluster tomorrow

Kevin
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Old Nov 19, 2005 | 08:52 PM
  #5  
IROCZ28KevinZ's Avatar
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From: Sedalia, MO
Car: 1991 Z28 convertible
Engine: 305 TPI
Transmission: TH-700R4
Axle/Gears: 3.73 posi 4th gen 10-bolt
Hey I have another quick question. On the back of the 92 gauges there are these two little blue things. Some of the printed circuitry goes into them and me and my friend have no idea what they are. Can anyone tell me what those might be and what they do?

Kevin
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Old Nov 19, 2005 | 09:01 PM
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From: conway, s.c.
Car: 1989 Iroc-Z
Engine: 5.7L TPI
Transmission: 700R4
If they are located near the two connectors, one is for the tachometer and the other one is for the speedometer.
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Old Nov 19, 2005 | 09:10 PM
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IROCZ28KevinZ's Avatar
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From: Sedalia, MO
Car: 1991 Z28 convertible
Engine: 305 TPI
Transmission: TH-700R4
Axle/Gears: 3.73 posi 4th gen 10-bolt
Outstanding. I can't thank you guys enough for your help. You have no idea how badly I've wanted to get these gauges, and since I got the whole dash-gauges too- for $25, I WILL get them working in my car. If people can get a 4th gen dash in there, I know I can do this. Thanks!

Kevin
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Old Nov 19, 2005 | 10:03 PM
  #8  
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From: conway, s.c.
Car: 1989 Iroc-Z
Engine: 5.7L TPI
Transmission: 700R4
BTW, on your 88 cluster do you have the gages or indicators in it? Also, another thing that you might want to consider here. The 92 speedometer is an electronic model and the 88 speedometer is a mechanical model.
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Old Nov 19, 2005 | 10:41 PM
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From: Sedalia, MO
Car: 1991 Z28 convertible
Engine: 305 TPI
Transmission: TH-700R4
Axle/Gears: 3.73 posi 4th gen 10-bolt
Hey..I have a full gauges. No idiot lights for me

Kevin
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Old Nov 20, 2005 | 11:13 AM
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From: MD
Car: '88 IROC-Z medium orange metallic
Engine: L98
Transmission: 700R4
Axle/Gears: 3.27
Funny, I have a Chiltons for my car and it's got specific schematics

Haynes on the other hand are worthless.
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Old Nov 20, 2005 | 11:54 AM
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From: conway, s.c.
Car: 1989 Iroc-Z
Engine: 5.7L TPI
Transmission: 700R4
Originally posted by Dialed_In
Funny, I have a Chiltons for my car and it's got specific schematics
But does it have this?

88 cluster pin-out
Attached Thumbnails Question about gauges wiring-cl1.gif  
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Old Nov 20, 2005 | 11:55 AM
  #12  
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From: conway, s.c.
Car: 1989 Iroc-Z
Engine: 5.7L TPI
Transmission: 700R4
page 2 of 88 cluster
Attached Thumbnails Question about gauges wiring-cl2.gif  
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Old Nov 20, 2005 | 11:56 AM
  #13  
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From: conway, s.c.
Car: 1989 Iroc-Z
Engine: 5.7L TPI
Transmission: 700R4
92 cluster page 1
Attached Thumbnails Question about gauges wiring-cl3.gif  
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Old Nov 20, 2005 | 11:57 AM
  #14  
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From: conway, s.c.
Car: 1989 Iroc-Z
Engine: 5.7L TPI
Transmission: 700R4
92 cluster page 2
Attached Thumbnails Question about gauges wiring-cl4.gif  
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Old Nov 20, 2005 | 11:57 AM
  #15  
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From: conway, s.c.
Car: 1989 Iroc-Z
Engine: 5.7L TPI
Transmission: 700R4
92 cluster page 3
Attached Thumbnails Question about gauges wiring-cl5.gif  
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Old Nov 20, 2005 | 03:52 PM
  #16  
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From: MD
Car: '88 IROC-Z medium orange metallic
Engine: L98
Transmission: 700R4
Axle/Gears: 3.27
Sure does, just like in the factory manual. I'm talking about the model specific Chiltons, not the cheesy ones that cover all makes/models for a particular year.
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Old Nov 20, 2005 | 06:08 PM
  #17  
IROCZ28KevinZ's Avatar
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From: Sedalia, MO
Car: 1991 Z28 convertible
Engine: 305 TPI
Transmission: TH-700R4
Axle/Gears: 3.73 posi 4th gen 10-bolt
WOAH! I NEEDED THAT!!! hey thanks a TON for that.

Kevin
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Old Nov 20, 2005 | 10:53 PM
  #18  
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From: conway, s.c.
Car: 1989 Iroc-Z
Engine: 5.7L TPI
Transmission: 700R4
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Old Nov 21, 2005 | 07:22 AM
  #19  
IROCZ28KevinZ's Avatar
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Joined: Oct 2001
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From: Sedalia, MO
Car: 1991 Z28 convertible
Engine: 305 TPI
Transmission: TH-700R4
Axle/Gears: 3.73 posi 4th gen 10-bolt
I guess those pinouts are gonna come in REAL handy these next couple days. We put in the cluster tonight. The tach, battery, and temp gauges all work. The speedo I know wouldn't work because it isn't wired in yet. However, the oil pressure and gas gauges don't work. So basically the left side of the cluster doesn't work. Strangely though, the lights for the speedo work. Also, with the engine running, the oil pressure reads in the red, but I know for damned sure my oil pressure isn't that low. When you turn on the headlights, the oil gauge goes down to zero, so it's electrical.

My friend is pretty sure he wired everything up right, and I trust his work. Could it be that because the speedo isn't wired in, there's an open in the circuit for that side of the cluster and that's why the other gauges don't work?

Kevin
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