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Ari-Pekka Keskinen

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Not getting the damn tacho work. Tacho that  i have in the turbo timer (hks) is working when the singnal comes from the g4 out put. The  cars own tacho jumps erraticly when accellerating. Tryed getting the singnal from g4 didint work at all. I have the link 2*2 channel wasted spark igniter. From ther the tacho jumps up and down.

Do i need some parts or what?



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  • 3 weeks later...

We normally refer people to a specialist instrumentation company. An option that might also work would be to use a Mitsubishi tach adapter that was used on the early VR4 (4g63 engine). This device takes the two coil negative signals and combines then into one to drive the tacho.




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