AEM with GM Coil packs

[Fierofiend]

Anyone here ever tried to run an AEM EMS with the stock GM coil/Ign Module setup? Im not really certain how the module works but it appears that it controls the timing or does some sort of calculations in there. I see that the crank and cam sensor both feed to it, so its not really lookin too good for me.

I'm trying to run a 3800 on an EMS, and it looks like i'll have to run 6 individual coils to get the full functionality of the timing. I know that is probably better overall, but at first i was trying to see if its been done with stock coils.

[jamz]

Never heard of it done with stock coils but I'm interested to know myself .. anyone else have any input?

[91parkave]

ure better off using Ls1 style coils anyway, the ICM controls spark timing until a certain RPM and the PCM takes over, so for a aem EMS system i cant see that working either

[Fierofiend]

Wow, forgot all about this forum. I just wanted to say that I got the car running with LS1 style coils. I deleted the stock ign module and pinned the 18x crank sensor and the 1x cam sensor to the AEM, and ignored the 3x crank signal.