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Tachometer not correct.

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Old Jul 17, 2024 | 08:40 AM
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Default Tachometer not correct.

My tach reads higher then what the engine is doing 1990 c-4?

Last edited by DoctorG17; Jul 17, 2024 at 08:42 AM. Reason: Add info.
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Old Jul 17, 2024 | 10:17 AM
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That is a common fault, they all break sooner or later and that is a common problem with the newer style of gauges (90-). Batee will repair yours or you can fix it yourself with their parts.


Last edited by ToniH; Jul 17, 2024 at 10:27 AM.
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Old Jul 17, 2024 | 04:43 PM
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You will need to provide a resistor to correct the high tach reading.

Here ya go ... https://www.corvetteforum.com/forums...ch-repair.html
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Old Jul 17, 2024 | 05:20 PM
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My 91 shows 2000 rpms at idle. I hoped there was a simple fix, but nothing is simple on a C4. Batee has a repair video and sells the parts. The repair looks easy, once you pull the panel from your car.
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