Erratic rev counter

MilesnMiles · Post by **MilesnMiles** » Tue Dec 27, 05 11:28 am

I have an Aotometer tacho that has worked perfectly for past 2 years. I fitted an FBO ignition kit (new coil) and the rev counter has become erratic. at worst, the revs go down as i acelerate and return to normal showing as i lift off the throttle.
i have re-connected the wire from the tacho to the coil 3 times without success.
Any ideas?

Anonymous · Post by **Anonymous** » Tue Dec 27, 05 12:07 pm

is it possible that the coil is drawing so much current that there's not enough of a signal goin to the tach?!?

Anonymous · Post by **Anonymous** » Tue Dec 27, 05 12:10 pm

Miles take a look here http://www.autometer.com/default.aspx, got some good tech pages

Don tells me there are no problems with the FBO kit and Autometer tachs

Alex · Post by **Alex** » Tue Dec 27, 05 1:47 pm

I used to get tach Bananarama! at idle, swapped the ecu and all was good, I doubt it will be an FBO ecu fault but maybe swap it out to check?

MilesnMiles · Post by **MilesnMiles** » Tue Dec 27, 05 4:12 pm

Looks like some testing required. Seems odd given that only one wire was involved and it is connected soundly. i guess i'll re-fit the original parts and see if it returns to normal. Wiring.. the curse of the unseeable!! (but, not the untestable

)