olysan

Can someone confirm that the output from the module of my T-Bolt IV ignition system is:

Purple Wire - Constant 12 V
Gray Wire - Coil trigger pulses

Regards
Mike

Edward R. Cozzi

Purple has battery voltage when ignition is on.

Gray is the tach sender.

olysan

My manual shows the gray wire lands on the neg term of the coil and continues to the the main wire harness/plug, sooooo...

is the "tach sender" also triggering the coil to fire?

Regards
Mike

Screamin' Seamen'

No. The coil trigger is in the dist. The wire just continues on to feed the tach.

rdoactive

Actually, I believe the grey wire from the module both triggers the coil and also signals the tah.
The signal from the pickup in the distributor only sends a signal to the module. The module is programmed to set the appropriate advance then trigger the coil and tach by grounding the grey wire at the appropriate time.

Wally

No....olysan is right.....theres a gray wire that comes from the ign modual to the neg terminal of the coil....that is the trigger...Also a purple wire from the modual to Pos side terminal of coil. then theres another gray wire that comes from the main engine harness to the neg terminal of the coil....thats the Tach wire...and a purple wire from main harness to pos side terminal is your switched power...