Sigma-galant.com

just wondering if anyone out there has hooked up the stock tacho in a sigma after an EFI upgrade.

if so how was it done, i have seen some wiring diagrams with a resistor or two.

but just wondering if anyone knows how to do it.

thanks

Adam

Yep, my stock in dash tacho on my EFI GJ Rallycar works fine. I'm still using a distributor & single coil triggered by a Bosch igniter module, so simply hook up the tacho to the -ve terminal of the coil as before, but remember, the tacho's were never really all that accurate anyway. Didn't use any resistors.

panda

Thanks for the reply,

alas when i upgraded i got a new coil with built in Igniter,

so since the stock tacho doesn't like the RPM out from the ECU i have to find another way

i just hooked the tacho to the coil -ve directly, shouldn't matter what kind of coil your running