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

I have tried the PNP NPN (the little switch). I am sorry, but I don't know what a DVM is.

both pots are full CCW and no matter what I do to the RPM pot on the stim, pin 14 only reads 0.15 volts

OK, Pots are fully CCW, still no signal Thank you for all the help!

We are using the VR, or at least that is what i am trying to do.I just thought I would add anything that is "different". We are testing on the stim. however I have tried on the car before too but not since I made a few changes.

Hello everybody, thank you for taking the time to help me with my megasquirt build. I am using MS2 V3.0 with a MegaStim V2.21. The tuning software is Tuner Studio MS V3.0.28. I am looking for a hall effect signal through the VR input. Pots R56 and R52 are both set 6 turns clockwise from full ...

Hello all, I am on megasquirt 2 V3.0 and I just finished building it. I am trying to load firmware but I am stuck because there are zero responses. I gic it power and nothing happens. The only power that I can find on the board is at the top (or the banded) side of D4. I replaced it with another one ...

Hello everybody, I am a bit confused about the tacho pin #36 of the DB 37 I think. Is this how to trigger the coil? Also, The tachometer that I have used to be controlled by the stock ecu, how do I send it a signal form the Megasquirt (V2 3.0)?

Thanks so much! - Chris Fowler

Thank you fo your reply, I don't think I made much sense though. I am looking for what each pin on the DB37 does. like what pin 1 does, pin 2 does, and so on.

Thank you for helping me! - Chris

Okay, so I have my Megasqurt 2 V3.0 all done and ready to go on the car (Porsche 944 S2). The car has a Bosch 55 pin style harness connector so I got the adapter from DIY autotune and I am trying to go from the DB37 to the Bosch connector. I have the Bosch's pinout, but I am not totally sire on the ...

Okay, so it is PWM, thank you for that. So, then I should connect JS0 to IAC1A, JS1 to IAC1B, JS2 to IAC2A, and JS3 to IAC2B?

Again, thank you so much for all the help. I am super new to anything like this and I know that I bit off more than I can chew but I am excited to learn!

Thank you, Chris

(Megasquirt 2 V3.0) Hello, I am using a 3 wire Bosch IAC on a Porsche 944 S2 and I saw that in the assembly guide there are different methods of wiring the board for different IAC valves. I think that what I have is a stepper IAC. I have also found a picture on google that has the 3 wire IAC that ...

Ok so I got curious and found that the heat actually had no affect on the PCB. What I was seeing has been caused by the flux!
Thank you so much Ken!

Hello everybody, I am just starting to solder the DB9 connector on and I noticed that the solder mask is turning a darker blue and it is "bubbling" for lack of a better term. I tried putting a picture with this post, I think it worked. Any and all criticism is welcome! Thank you so much!