EZL Igntion/tach Help
 

Need to know if the TD signal from the ign module to the tachometer (and other places) is an A/C or D/C signal and what a normal voltage reading at idle would be. Tach has stoped working need to know if it is getting the correct signal.

Thanks ;)
MAGV5

What year & model car??

The TD signal is always DC.. voltage differences dependant on type of system.

About 5 different systems starting in 1970 & ending in 1993 (USA cars).

MB Doc

Sorry, I thought all the ezl systems were the same. I guess that was a bad assumption. The MB is a 86 500 SL.

Tks