Ozzie831 Posted November 16, 2014 Share Posted November 16, 2014 I just bought a MS2 V3.57 (with the Single Ignition Output through BIP373 coil driver) for my 77 280z and I cant get the RPM to sync. I used to have a MS1 V2.2 but I didn't add drop resistors to my injectors so the box got screwed. Everything used to run fine with the MS1 but now with this new box I cant get the RPMs to sync. A little about the car ignition: 83 Turbo Dizzy (Has a 1k resistor between the white trigger wire and the +12v) (stock trigger disc) MS generic wiring harness MSD 6AL MSD Blaster 2 coil I used a volt meter at the dizzy's signal wire and it's getting 5.26 volts at the highest, .36 at the lowest. I don't know what the volts are supposed to be at, but I was told to take a look. I dont have an oscilloscope or a stimjim (dont have a job so I wont be buying either). Id be greatly appreciative if anyone has ideas. If I missed something I will try and answer any questions to the best of my ability. Austin Quote Link to comment Share on other sites More sharing options...
winstonusmc Posted November 17, 2014 Share Posted November 17, 2014 Can you post a screen shot of your Ignition settings in tuner studio? I have used a 330ohm resistor in conjunction with Vcc (5V) on a few different Nissan CAS with great success. I think it would be a better signal because the 12v isn't regulated so its more like 10v-14v. Vcc is always 5v. I use the DIY wheel in my CAS, so my settings are a little different. Quote Link to comment Share on other sites More sharing options...
Ozzie831 Posted November 17, 2014 Author Share Posted November 17, 2014 (edited) Im not very electronically savvy when it comes to tuning, wiring or computer boards but I do know how to take a screenshot haha. Edited November 17, 2014 by Ozzie831 Quote Link to comment Share on other sites More sharing options...
winstonusmc Posted November 17, 2014 Share Posted November 17, 2014 Is this a new MS2 build from DIY? How is you ign settings inside? I am pretty sure the V3.57 board has a jumper for a pull up for ign in. Quote Link to comment Share on other sites More sharing options...
Ozzie831 Posted November 22, 2014 Author Share Posted November 22, 2014 Okie dokie, I got the RPM signal. I believe the battery was just too low for the computer to sense it :/ So now I just gotta work on my timing since I dont have spark :/ Quote Link to comment Share on other sites More sharing options...
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