Re: Tach Issues
In a lot of instances if you have a multi spark ignition system the tacho gets confused by the multiple sparks and shuts down as the revs pick up.
When I first connected my tacho it read fine at idle but as soon as the revs got up above 1500 it would stop reading.
I had to use an adaptor which piggy backed off the crank sensor on my 5.4 modular motor to get a stable pulse the tacho could read.
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