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Tach Only Works When Wet

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ben90tsi

ben90tsi

15+ Year Contributor
339
0
Apr 4, 2004
Chippewa Falls, Wisconsin
Hey im just wondering where i can locate a connection on the back of my engine for the tach. when ever i wash the engine the tach works fine for a while but then quits once i have been driving the car for a while. Any help would be grand.
 
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The Tach Circuit is located inside the Power TR unit.
the thin flat black thing that plugs is right beside your coils.

check for bad connection or broken wire.
mabye even a bad TR
 
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