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

1991 Tachometer issue

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Old Aug 2, 2013 | 12:46 PM
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Default 1991 Tachometer issue

My tachometer on my 1991 C4 has not worked since I bought it. I read somewhere that it may be the filter. I tried to jumper across the filter wires but somehow must have screwed up since now my "one to four" light is on all the time. Does anyone know how to 1) get the light back off 2) help me to get the tach working
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Old Aug 2, 2013 | 02:56 PM
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The 90 and 91 Corvette L98s sometimes have problems with either very high or low readings.
Try this link or do a search at the top of the Forum page. You can Google this topic too and find out a lot.
My 91 has always read real low. The tach board mod/repair is on my growing "to do" list.
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