Originally Posted by
blacky.
its black magic you turn the key & they work unless you run coil packs then the read double or not at all

I am now running coil pack, and different ECU.. and have a tacho driver from the ecu to the rev counter...
just basically wondering what i should be seeing at the wire that feeds the rev counter!?
ive got about 6v at idle... but i was kinda expecting it to be a pulsed -ve

LOL doh.