C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Digital Dash Fun...NOT.. HELP PLEASE

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Old Sep 26, 2012 | 09:29 AM
  #1  
Z52 VETTE's Avatar
Z52 VETTE
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From: Kansas
Default Digital Dash Fun...NOT.. HELP PLEASE

Hello again ladies and gents of the forum. I have a tad bit of a problem with my digital dash. To start...got the car with a completely broken dash, sent it too a really good guy, and he gave me a complete different one that works and perfectly rebuilt. Heres the problem, the dash is basically new...and yet still does not work on occasion. I just got my car back from a shop and they gave the car a complete tune for the 383 and made it right, and the weird thing is,, for a whole week the dash worked. Then yesterday cruising around 35 mph..it went out. Didnt even hit a bump. The dash had never been on so long. Im wondering if my battery is bad and not keeping pace with the car, because my alternator is running everything else perfectly...OR its a bad ground. If its a ground, i need to know precisely where it is, any advice is much appreciated. The dash will work and not over and over again, would like to make it right. Any help is needed. THANKS Y'ALL
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Old Sep 27, 2012 | 11:15 AM
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fredd1
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From: Princeton Jct. New Jersey
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Originally Posted by Z52 VETTE
...OR its a bad ground. If its a ground, i need to know precisely where it is, any advice is much appreciated. The dash will work and not over and over again, would like to make it right. Any help is needed. THANKS Y'ALL
If the '87 is the same circuit layout as my '84, the ground is at G101 (via circuit#150) and is located under the right hand side of the dash. Is it just the backlights going off or do the gauges stop working also?
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Old Sep 27, 2012 | 02:02 PM
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Z52 VETTE's Avatar
Z52 VETTE
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From: Kansas
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Originally Posted by fredd1
If the '87 is the same circuit layout as my '84, the ground is at G101 (via circuit#150) and is located under the right hand side of the dash. Is it just the backlights going off or do the gauges stop working also?
EVERYTHING stops working. I ll try re grounding that ground...did it fix yours? if not im gonna try the bell housing ground.
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Old Sep 28, 2012 | 10:24 AM
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fredd1
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From: Princeton Jct. New Jersey
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Originally Posted by Z52 VETTE
EVERYTHING stops working. I ll try re grounding that ground...did it fix yours? if not im gonna try the bell housing ground.
In my case it wasn't the ground, the power supply and inter-board connector needed to be replaced.
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