So i decided to finish up the car alarm's remote start and i have spent hours out there now trying to figure out which wire is the tach wire. I have used craigs site, and the other wiring charts and need help! My alarm uses a neg tach signal and i couldnt figure out which green black silver wire it was and oin 7 didnt help and i have no clue which is 2 and 4. anyone have a pic or a way to help me, this is my last wire!!

thanks

VG AUTOMATIC BTW...

can i tap this wire off the A/T box instead the ECM/ECCS?

 

ok so after finding out that another site says its blue at the AT Coil, wheres the AT Coil??

 

you can tap it at the ignition coil.

 

there is a positive side and a negitive side of the coil. splice into the negitive side. thats the side that feeds the tach signal to the tachometer.