New MS user with some questions.

This forum is for discussing ignition setup, tuning, and troubleshooting for MS-II. Click these links for info on GM's HEI, EDIS, direct coil control, others.
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detvw
MegaSquirt Newbie
Posts: 1
Joined: Wed May 28, 2014 5:10 am

New MS user with some questions.

Post by detvw »

I have been doing a lot of searching, reading, etc. and have a few questions I hope the veterans can help with.
I am complete with my building of the ecu short of any jumpers I have to install related to my findings.
I have MSvII w/v3 board
This will be running a supercharged '95 VW ABA 2.0l 8v.

I am in the middle of building the engine wiring harness. This will be the third harness I have built for the car. The first was splicing the OBDI harness into the stock wiring(car is an 86) which ran just fine. Second, I rewired the entire car to use the more modern CEII wiring from a late model GLI. This uses the same fuse box as the later model golf/jetta 94-99. Upgraded the engine harness to use OBDII so I could use bigger injectors and a FI chip with the supercharger. I had several issues with this and decided to go MS to hopefully simplify things for.

Now on to my questions.
I would like to use the stock VR sensor and retain the stock Coil firing through the distributor. Is this even possible with MS?
I would also like to entertain the idea of going wasted spark. Pros/cons?
I also have an EDIS 4 unit out of an escort I could use. I like the idea of having one coil pack for all 4 cylinders. Must you run the EDIS controller, or can you just use the coil pack as a wasted spark unit?

OK Go... any input would be greatly appreciated. It would be a treat to have this thing back on the road sooner than later.
Matt Cramer
Super Squirter
Posts: 2951
Joined: Sat Jul 03, 2004 11:35 am

Re: New MS user with some questions.

Post by Matt Cramer »

detvw wrote:Now on to my questions.
I would like to use the stock VR sensor and retain the stock Coil firing through the distributor. Is this even possible with MS?
Yes. Is this one crank triggered?
I would also like to entertain the idea of going wasted spark. Pros/cons?
I also have an EDIS 4 unit out of an escort I could use. I like the idea of having one coil pack for all 4 cylinders. Must you run the EDIS controller, or can you just use the coil pack as a wasted spark unit?

OK Go... any input would be greatly appreciated. It would be a treat to have this thing back on the road sooner than later.
The only option with standard B&G code covered on this forum (besides trying to modify it to use MicroSquirt code, which is a lot of work) is to use EDIS, which requires a Ford style crank trigger, and the spark cut rev limit is hardwired into the EDIS module. On the other hand, EDIS is a fairly hot factory ignition.

The MS2/Extra code, covered on MSExtra.com, allows controlling a coil pack directly.
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