A few years back I purchased a MS-II rev 3.57 to use in my 2.4L stroker DSM. I had to put this project on hold for a little while, and am just now coming back to it. Unfortunately, I can't remember much of where I left off with this hardware after spending hours upon hours of research and piles of cash on new parts. I'd greatly appreciate a hand! (I did try to find as many answers on my own in the literature so as not to clog up the boards with repetitive questions). I purchased it in the store completely assembled; I don't quite remember any of the options I had bought with it.
This system is to be installed on a later 7-bolt 4g64 block with a 1G turbo ported, cammed, o/s valves and completely reworked head. I have a brand new set of OE dual ignition coils of OE make on 7mm quality HV wires to be used in the factory wasted spark configuration. I will be using the factory Hall effect crank sensor on the engine.
I need a bit of help integrating the factory coil(s) pack to the MS-II. According to the lit, there two options to utilize the OE wasted spark configuration and hardware: jumper PAD1 to Q16 (transistor not installed on my board ATM, but that space is occupied already?), or incorporate the Bosch BIP373 system. The former seems like an easier solution had it not been in use.
I'm assuming individual control of either coil packs (A or B) stems from the ignition power transistor? Is this what the factory ECU uses as a switching/triggering device between the two coils, but controlled by a single ignition output referenced on the MS-II (pin 36)? Also, will these changes necessitate reevaluating the filtering capacitor on the coil pack?
It's rather muddy to me overall, if someone can explain the order of operation between these ign components and the MS, it would greatly help me out. Is there an inherent disadvantage to the "going low" option? Are there any limitations this system would encounter under high boost and high revs? Heh, I hadn't realized how labor intensive this operation would be.
P.s: kind of a stupid question, but what exactly is that daughterboard in the center of the unit and what is its function? I thought it had something to do with driving the idle air control servo...
I'm again completely unsure as to what extras I bought with this aside from the MAP sensor--it was a number of years back