MSD Tach signal generate

tebriel · Post by **tebriel** » Tue May 02, 2006 7:07 am

Hi Everyone,
I'm trying to get my friend's saturn working with the MS2, he's currently running the MS1 on there.
He's using the MSD tach signal generator, and for some reason the MS2 does not like the signal it's giving out, as it's not showing any tach signal. I tried that same MS2 unit on my car, which was runnin the MS1 and I get the cranking signal. I'm not using hte MSD unit, just the stock ICM.

Does anyone know what type of signal that MSD unit puts out? The MS2 is running 2.34, and it's set up for the hall signal I believe.
Thanks!
Teb

Jim · Post by **Jim** » Wed May 17, 2006 4:26 pm

I've never heard of an "MSD Tach Signal Generator" ,
can you clarify this ?

If it's just a regular ole MSD 6 and you are using the Tach output terminal ,
then the output is a 0 to 12volt square wave , perfect for driving MS , unless
you are using MS to control the Timing , in that case it won't work at all .

Every bit of information about your installation is important in trying to
diagnose problems .

...................Jim

bluetrepidation · Post by **bluetrepidation** » Wed May 17, 2006 4:39 pm

I think I've seen this unit. Though I'm not sure what it does. My understanding is it helps share a RPM signal from other existing devices? Jim knows what is up. More info please?

A.J.

spoolin95sc2 · Post by **spoolin95sc2** » Mon Jun 12, 2006 6:09 pm

Hey sorry bout the long delay...well the msd tach generator is basically just a little box that takes the power going to the ignition controll module and converts it into a tach signial im pretty sure its square wave, im not using a actual msd box on this...the thing is it runs the MS1 fine no problems...i can get the car to run on the ms2 off the stock tach signial but for some reason my signial gets "dirty" persay somehow, and the car shuts off and wont restart for about a half hour....im stumped....

tebriel · Post by **tebriel** » Mon Jun 12, 2006 7:11 pm

guys, check out this link and scroll to page 6: http://www.msdignition.com/pdf/npp2004.pdf

some obd2 and later saturns require one of these to run the MS unit. However, jw, the guy with the problem ^^ has a 95, which is still obd1. That's why we're stumped. This msd unit runs the MS1 fine, but not the MS2... pretty freakin weird

We're probably going to replace the whole wire harness for the engine, and the pcm.
-teb

spoolin95sc2 · Post by **spoolin95sc2** » Fri Jul 07, 2006 12:42 pm

anyone have any ideas on whats going on with this?

chrispel · Post by **chrispel** » Sat Jul 08, 2006 4:54 am

I'm not sure I can ask Teb today.

spoolin95sc2 · Post by **spoolin95sc2** » Sat Jul 08, 2006 2:42 pm

haha chris and i are both stumped on this, chris only lives like 10 min. from me...and he built the ms2...so i dunno

chrispel · Post by **chrispel** » Sun Jul 09, 2006 6:21 am

Woops I read your post wrong. It's just your car.

spoolin95sc2 · Post by **spoolin95sc2** » Sun Jul 09, 2006 9:17 am

haha thanks