Coil swap/firing order - Performance Forum

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Coil swap/firing order
Thursday, May 17, 2012 10:33 PM
I've been searching around and haven't found quite what I'm looking for. This is mainly for you LD9 and Eco guys that have switched to 2200 or MSD coil packs, using the 2200 ICM (no MSD interface blocks).

I'm running an Eco off an LD9 harness and PCM, and want to double check this before firing it up. What plug corresponds to which terminal on each coil pack? I know the Eco and ld9 share the same firing order, but i feel like the 2200 does not...so looking for clarification. If they are indeed different, and I plugged into the coil packs like a 2200, then my firing order would be incorrect, right?

As of now, I have them hooked like what MSD recommends for the ld9 conversion (left coil is plug 4 & 1, right coil is plug 3 & 2), but now I'm beginning to think that is wrong if the 2200 has a different firing order...

Or am I missing something obvious? I've done so much wiring in the last few weeks that my brain is getting overloaded.







Re: Coil swap/firing order
Friday, May 18, 2012 3:00 AM
I believe the 2200's firing order is the same. 1-3-4-2.







i find it amusing that SHOoff has nothing better to do but follow me around & be an unhelpful dick in even cross-forum. - Jon Mick
Re: Coil swap/firing order
Friday, May 18, 2012 3:43 AM
you're overthinking it.

all 4 cylinders with wasted spark fire the same.

Coil A (1,4)
Coil B (2,3)
Coil A (1,4)
Coil B (2,3)

(edit.. better understand what you were asking)
in other words, the terminals on the coils themselves (where the plug wires plug in) do not matter. As long as both plug wires on coil A go to cylinders 1 and 4, and both plug wires on coil B go to cylinders 2 and 3, it'll run fine.






Edited 1 time(s). Last edited Friday, May 18, 2012 3:45 AM


Re: Coil swap/firing order
Friday, May 18, 2012 4:07 AM
Ok, gotcha PJ..I was hoping you'd chime in, i was gonna Facebook you later on about it, lol.
I wasn't sure how the 2200 icm controls everything in comparison to ours, which is what threw me off. So then it sounds like what I have is correct.
Thanks for the info!






Re: Coil swap/firing order
Tuesday, May 29, 2012 7:01 PM
I would like to do the msd coil conversion on my ld9
What would I need to get part number please
Re: Coil swap/firing order
Tuesday, May 29, 2012 7:03 PM
Is there a how to or any guide?
Re: Coil swap/firing order
Wednesday, May 30, 2012 1:25 AM
Well for the basic conversion, you would need 2 MSD coil blaster packs (p/n 8224), a 2200 ignition control module w/ pigtails, and plug wires. I have no idea if MSD makes a prefab kit for the LD9, but pretty much any make/model wires will work if the lengths are what you need. I found a cheap set of mustang wires on eBay, used the 4 that were the length I wanted, and sold the rest. MSD also makes universal kits that you can cut to desired length and crimp on the boots.
As far as wiring, basically cut of the ICM connector on your harness, and splice in the 2 connector pigtails for the 2200 icm, matching color to color.

You can also use the MSD interface blocks, though I'm unsure if you would wire those with or without a stock ICM. I believe us Eco guys piggy back them off the stock icm. Search, there are a ton of threads here with wiring diagrams.

You can also go all out and run the DIS-2 box, though it's certainly not needed.






Re: Coil swap/firing order
Wednesday, May 30, 2012 4:50 PM
Wow...this sounds a lot easier than when I was looking into this a few years ago. Splice or solder? The idea of cutting off a perfectly good harness sounds crazy.



Re: Coil swap/firing order
Wednesday, May 30, 2012 5:04 PM
thevilliagemon wrote:Wow...this sounds a lot easier than when I was looking into this a few years ago. Splice or solder? The idea of cutting off a perfectly good harness sounds crazy.


Solder. I'd never trust important connections like the ICM to anything less. And it is really as simple as match the wires color by color.






Re: Coil swap/firing order
Saturday, June 02, 2012 2:20 PM
This will be revisited after my engine swap nightmare is over. Really needed to post so I knew how to locate this thread again.



Re: Coil swap/firing order
Saturday, June 02, 2012 6:24 PM
There are some diagrams in the performance FAQ sticky.
I'f you need more info.

Re: Coil swap/firing order
Saturday, June 02, 2012 6:46 PM
EVILution (KGM Godfather) wrote:
thevilliagemon wrote:Wow...this sounds a lot easier than when I was looking into this a few years ago. Splice or solder? The idea of cutting off a perfectly good harness sounds crazy.


Solder. I'd never trust important connections like the ICM to anything less. And it is really as simple as match the wires color by color.



I'll actually one up ya there mat. I prefer to de-pin and re-pin connectors, rather than use pigtails...much cleaner looking, and no chance of a bad connection from a splice or anything else...however, the Gm method of repairing wires is to use crimped connectors that come with the pigtails. They have heat shrink on them, and when you heat them up, a glue like substance oozes out to act as a weatherstripping...I leave it up to you what you trust
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