MSefi.com read only forum (Jan.15,2018)

5 volt ref from pcm to coil to trip 1/4 ign coil on the vr ign input

I have my ms2 v3 hooked up as an extra injector controller. the problem I have now it that the rpms are at 1/2 of the true reading. I have been looking through the settings in tuner studio's and not seeing how to fix. anyone have any ideas how to fix this.

well it is set to optical in. before I change this I just wanted to make sure that hooking it up this way will be able to take 5 volt signal from the coil module to trigger it and not damage the ms2.

Im not to sure what circuit I am using. I thought it was a vr but not sure. The number on the unit is ms230-c. Hope this can help. I told you guys what I was gona do with them and bought 2 if them with innovate WB and hooked them up and they worked. Internally I have no clue on how they work not to ...

I think I am using the vr circuit. I bought the years ago and it was pre wired from DIYAutoTune. It has a shielded wire to pick up a signal. It was hooked uo to the tach mire on the obd1 system and worked fine. I dont want to run full stand alone nemore. So wired the stock stuff back up and now im ...

I used the same wire I used for my auto meter tach. my car has 2 coil packs that are on a module. their is a tach out "from my pcm" that goes to my dash tach and it is like a 6 ppr. if I hook the ms2 to that I loose my tach. on my ign module has 2 different sense wires on to tell the 1/4 coil to ...

I have a ms2 v3 and want to use it as an extra injector controller on my 99 Saturn. Problem I have is I hook up the trigger wire on the tach wire I lose my dash tach. if I hook it up on the white trigger wire for coil 1 and 4 at coil it shorts circuit and have a bad miss. is their some way I can get ...