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

Tach problems

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Old Aug 13, 2020 | 12:47 PM
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Default Tach problems

I have 1996 vette and the tech keeps jumping up and down. It doesn't do it all the time, only sometimes as I am driving.
Also, does anyone know anything about the ASR light coming on.

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Old Aug 16, 2020 | 10:49 PM
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I don't know about a 1996, but I have an 85 that did the same thing. It turned out to be the tachometer filter, A small silver tube like part with 2 wires on it that attaches to the back of the engine on the drivers side behind the valve cover edge close to the firewall. Inexpensive and easy to replace.
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