digital gauges crazy
 

i have a 96 corvette lt4 with a new update to 396 stroker

now i have a problem.

When i start the car, all is perfect, but when the water temperautre arrive to 194º in 20 minuts of normal function, the digital temperature becomes crazy( low, 2º,10º, 40º, low) but the analogic gaugesmeasures 194º (the correct measure). then the car stop and start engine again(with false measure of water temperature)
The car is drowned, and several times I stepped on the accelerator to achieve star engine.
[/align](sometimes the digital speed , flashingless than a seconda false speed numbers, example: 134miles when the car really run at 10 or 20 miles for hour).
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[/align]I,m crazy, please give some idea.
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[/align]thanks
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RE: digital gauges crazy
 

Bad ground or a solder has come loose. These would be the first two things I would check. If worst comes to worst, you will need to get another cluster or have yours rebuilt.