Tach install

[vududoc]

Ok.....im tearing my hair out on an aftermarket tach install.wire 7 is a no goengine bay plug is a no goneg terminal is faintinsight on this please........ looking for resistance values or alternate connections.

fast datsun.......?????no matter how much i poke around its not registering correctly......i looking for values or others with monster tachs.

[BoostFab]

did you tap into the tach signal from the efi harness?

[vududoc]

egad man could you be more vague?

[Carl H]

is the efi harness grounded properly?if not then your tach may not work.you need to put the black wire on the rb efi harness (its on one of the white plugs) to ground.

[FAST-DATSUN]

You must use a autometer tack adapter to make the aftermarket tack read in coil on plug systems..................

[vududoc]

so theres no work around..on that....