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Re: Factory tach reads half of actual engine speed? | Subject: Re: Factory tach reads half of actual engine speed? by ddgonzal on 2022/4/5 2:13:42
Did you get it used? A previous user may have converted it for V8 use (changed a resistor)
You can also, test it on any car just connect the wiring loop to the coil. Between coil - or coil + and the existing wire. and connect 12V and ground
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