Megasquirt Crank Trigger

[90 turbo prerunner]

Just got my MS II the other day, so now i figured i would findout what im doing for ignition while i build the MS. i have looked on the megamanual a bunch of times but i cant seem to get it strait, it doesnt seem like you can drive all four coils on waste spark from the MS? So that means use the EDIS, i would need to use EDIS 8 since im running dual plug right? and then i need to get the VR wheel and sensor, where do i get one that works with our crank and pulley? sorry if this has been covered before i didnt really see much that answered my questions on here, and i looked on turbo ford but didnt see much there either.
Thanks,
Jake

[jfive]

Pretty sure its sequential spark that you can't do with MSII. You need signal for 4 coils as they fire at the same time, not 8 like some might tell ya. Thats why MSII would work great on 8 plug 2.3. I spent a long time on this one too, so I know the frustration. Go to the megasquirt forum and ask around there. Alot of helpful people there.

[Pimp_Daddy_Patty]

EDIS 8 is for an 8 cylinder. Unless the 95+ motors run a 36-1 trigger wheel, we actually use the TFI configuration for a 4 cylinder like in my 94 Ranger.

I'm not entirely sure about driving the coils directly, the dual plug ignition module setup looks to me like a more simplified setup.

[90 turbo prerunner]

thanks for the help, after i posted this yesterday i had more free time and did some more digging, and i think i have a better idea of what i have to do now.
Thanks again,

[D94R]

I'm thinking the EDIS-4 module should be able to supply two coils for the dual spark, though I'm assuming it's just commanding the coil to module to ground to send the spark from the coil.

How do the 95+ Rangers control coil ignition? They do use a 36-1 wheel but the EDIS is built into the computers so no external EDIS module, but it still controls dual spark. So if Ford does it already (without an external module) I'd think you could get a EDIS-4 module to work with dual spark no problem.

[Pimp_Daddy_Patty]

You should be able to drive the coils directly in that case. I'm not sure about the drivers, might have to use 2 per coil pack (4 altogether).

[AirBender]

Pretty sure its sequential spark that you can't do with MSII. .

damn, must be doin it wrong then///:moon:

[90 turbo prerunner]

EDIS 8 is for an 8 cylinder. Unless the 95+ motors run a 36-1 trigger wheel, we actually use the TFI configuration for a 4 cylinder like in my 94 Ranger.

I'm not entirely sure about driving the coils directly, the dual plug ignition module setup looks to me like a more simplified setup.

So are you using TFI with dual plug?

[Pimp_Daddy_Patty]

So are you using TFI with dual plug?

Yep, it's actually a TFI setup as far as the megasquirt is concerned.

[90 turbo prerunner]

Alright thats what i figured, and thats how i have been going about building it.

[jfive]

damn, must be doin it wrong then///:moon:

is it waste spark that msII can't do then? I know its one of the two, and it may have only been for 8 cylinders. Been a while since I was reading the megamanual.

[Pimp_Daddy_Patty]

Youre not gonna get wasted spark on a 10 or 12 cylinder as there are only 4 ignition outputs.

You can do a sequential spark with a 4 cylinder and a cam sensor.

[AirBender]

which is the best way to run the ls2 coils....

[90 turbo prerunner]

Got everything built and installed in the truck all sensors are reading right, havnt done any tuning yet just cycling key, still need to re torque head and put intake back on before i get to all that jazz. I was however wondering if anyone has a base tune i could use to get started?
Thanks, Jake

[jfive]

you should be able to just enter what your using in the software, and get it to run, and then use the software to make your changes.

[90 turbo prerunner]

i figured i would do that, just thought i would try to find a known good tune just incase i run into trouble.

[90 turbo prerunner]

well truck doesnt start, has spark and fuel upto the injectors but the injectors dont fire. has battary voltage at injectors and you can trace that voltage all the way back to the connector on the megasquirt so the harness is good, its just not pulling the injectors to ground. injectors are known good and i tested them with 9v they work just fine. i dont have a stim so im stuck now. i took the MS apart again to look for anything that might cause this but everything "looks" fine. anybody have some pointers for me?

[90 turbo prerunner]

Got it fixed!!! fired right up first try! i made a stupid mistake in the very begining, i just glanced at the ECM setting in general setup in tuner studio, and i set it to microsquirt not MS II, changed it to MS II and everything is working perfect!

[AirBender]

youre gonna like tuner studio....

[90 turbo prerunner]

youre gonna like tuner studio....

Are you being sarcastic here? because so far i like it.

[Pimp_Daddy_Patty]

TunerStudio is awesome.

Just passed emissions in my MS1 powered truck. So far so good, too bad DP won't work right....

[AirBender]

Are you being sarcastic here? because so far i like it.

no sarcasm here, i have been thoroughly impressed with its capabilities.... awsome tool....

[90 turbo prerunner]

Alright i didnt figure you were, yeah i really like it. i still have to do alot of tuning but i am actually suprised at how well my truck is running with the little bit of tuning that i have done to it so far.

[Pimp_Daddy_Patty]

These motors are surprisingly easy to tune. 16v stuff seems more picky.
Congrats on the install.

[90 turbo prerunner]

Thanks im really pleased with the truck, even with 33s and only 10psi its quick!