Ive seen the question posted many times on a couple different forums of how to make msd coils work on the ecotec without a dis2 box... after alot of trial and error, i figured it out....
i didnt do all different colors and all, but this is what you want to do
the coil interfaces have white, black, black, white wires as we all know.. the two outside ones are white
for the left interface you see in the picture, coils 3 and 2, connect the white and black wire on the left, and those run to the spot show on the icm plug. (yes, the icm plug has like 5 wires, but out of the three pins that we use, its the one shown when the orientation of the icm is the same as shown)
for the right interface do the same as before, connect the left two wires and then run those to the spot shown on the icm, the pin all the way to the right.
for all the remaining wires, connect them all and run them to the middle pin on the icm
sorry for the quick write up that might be missing details, i just wanted to get this on here before bed, i can clarify later on if something doesnt make sense... hope this helps out some people!
Very helpful thanks!!!! I still need to do this as I have all parts sitting here but was a little skeptical on wiring since Im pretty new to eco ignition..You know the part number for the cam sync to take care of the cel? Also what about plug gap? Thanks again man very helpful hopefuly do this tomorow.
i didnt use the cam sync, in pjs how to with the dis box he has all the part numbers i think. i wasnt worried about not having a cel, i just wanted to get this to work! lol. same with plug gap, it wasnt changed from how things were.
without the dis box i dont know how beneficial this swap is (prolly not much)... but for those that run an lsj valve cover on their l61 head and want external coils rather than cutting up an l61 coil, this is a good option. might just be form>function lol
Do you have to use the MSD interface blocks or can you get away with using the 8442 (?) coils on the 2200 interface block?
this is just specifically for the coil interfaces running off of icm with out dis box. im not a good at wiring at all, but after so many combinations i got this to work like i wanted. ive never messed with the 2200 interface block, from what i hear its no better than stock eco coils
i used the 2200/msd coils on mine and its working great i only did it cause the lsj cover the 2200 is pretty easily wired in color matched wires
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Pics of said setup
Ben worked very hard on figuring this out..so I hopit helps everyone out
car accelerates a lot better
13.1 @ 115
Any way to get rid of the CEL?
Philly D wrote:Any way to get rid of the CEL?
use hpt to turn off that cel code
RIP Cpl Derek Kerns And Cpl Robby Reyes
24th MEU VMM-261 (REIN) V22 Crewchiefs
11 April 2012 Morocco (African Lion)
Back again...So tried this but had a little problem with wiring since I hate anything electrical. The plug on the icm has like 5 pins, which pins do the wiring go to and do you have a part number for a connector or what did you use to pin the wires to the icm plug? Thanks
Well I found a connector that appears to fit perfect, acdelco PT1556. But Im not paying $60+ for a damn connector so Ill just individual pin,heatshrink and wrap it up weather tight. Just need to know which pins are used on the icm plug
Does this yield a possible power/mpg gain?
Edited 1 time(s). Last edited Sunday, July 24, 2011 6:29 PM
LE61T PTE6262 Powered
Qwibby PTE Powered wrote:Does this yield a possible power/mpg gain?
I'd like to know too, gotta know if it's worth the hassle or not
Idk bout the eco but I know it did on the ld9, ran just the 2200 setup with msd wires on my ld9 for 3yrs with no spark issues boosted. I have everything and it looks better than the stock ign setup soo why not do it. Plus I wana do an lsj valve cover so this saves me the hassle of modding the coil cover
Any word on which wires to pin? Theres 6 on the icm plug, and only 3 needed with the msd stuff, where do they go?
If I remember right there are only 3 pins(out of the 6 spots) on the ICM, use those
SLOCAV wrote:Qwibby PTE Powered wrote:Does this yield a possible power/mpg gain?
I'd like to know too, gotta know if it's worth the hassle or not
Without the cam position sensor setup on it the car will run in non-sequential injection mode and you'll loose MPGs.
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Yea youll run in batch fire mode but plenty of people have done this and dont realy have any loss in mpg, just a cel. But the saturn cam sync takes care of this as well
yes there are only 3 wires going to the icm. if u are looking at the icm just as it appears in the pic, the left wire goes to where shown, same with middle and left.
could someone possibly clarify, or make/have a better diagram? ive been interested in doing this, i just want to make sure im doing it right before i tear into it, plus its my only car right now so i cant have it down for too long
I wired mine for the 2200 ICM and coils a few weeks ago. I cut up a spare eco ICM to make it plug and play so when installation time came the swap only took 10 minutes or so. I found a helpful wiring diagram that really cleared things up. I'll see if I can find it for you tomorrow.
Found it
On some of the 2200 ICM's the brown wire is another purple one. Doesn't make any difference. If you have any questions about anything, let me know and I'll see what I can do.
That's awesome, thanks man, now to get some 2200 ICM plugs
