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

Problem solved; car has never pulled so hard..... loving it!

Megasquirt rocks!!!

Just a quick update:

My problem with no rpm signal is now sorted :yeah!: Had a look over the MSII board and found a bit of wire between D1 and D2 jumpers.... must have come off the soldering iron tip or when I was putting the cover back on..... Thank god that's all it was! It's a little late so I ...

Hi all,

Ok, I've gone through and changed my MSII to accept hall/optical trigger and put it all back together...... I am no longer getting a tach signal to the MSII :( my tacho responds while cranking but there is no rpm feedback while viewing in TunerStudio. Also noticed that the fuel pump doesn't ...

Just had a 'light-bulb' moment...... I think I might know why I'm having this problem. On the initial setup of the MSII many years ago, I had a VR signal from the distributor; I recently changed this to an optical signal distributor and being such a long time since the MSII assembly, I forgot about ...

Replaced the plugs, no love! I normally don't give the car a hard time when it's cold but today I opened her up before WUE cycle was complete and there was no hesitation/pinging. As soon as it was close to operating temperature, it started to cut out at 4500rpm...... correct me if I'm wrong but ...

Just wondering if it could be my coil or plugs? Might try a new set of plugs tomorrow and see if it makes a difference.

Hi Matt,

Sorry to bother you, just wondering if you can shed some light on a problem I'm experiencing.

I'm not sure if I have a bad batch of fuel or if it's the high temperature we have at the moment but my Z seems to stumble between 3500-4500rpm under WOT. I've attached a screen shot of where the ...

Hi Matt, just wanted to say thank you; my voltage spike issue seems to have disappeared since I modified Q9 & Q12. Thanks again!

Merry Christmas.

Marc.

Thanks Matt; I came across that mod in the documentation last night. I will make the mods and post the results as soon as I can.

Once again, thanks for the advice, much appreciated!

Marc.

Sorry, forgot to mention it's a version 3.0 board. I'm not using any resistors; I've got 3 injectors per bank. It's been a while since I did the install, from memory I think the injectors are approximately 2.5ohm. I configured the board for low impedance injectors when assembling. Sorry if it's a ...

Hi Matt,

I'm running 440cc low impedance injectors off a supra. All of my cabling is screened and shielded with the shield (one end only) tied to ground at one common point.

I've attached a screen shot of the spikes; not sure if you need any more info regarding my setup.

Thanks in advance.

Marc.

Just wondering if you found a solution to this problem? I'm experiencing a very similar problem in my 240Z (running an injected L28) and am getting the odd voltage spike of 21.6 volts and down to 7.3 volts. I'm running MS-II with 2.886 firmware. I'm not using the standard alternator; ending using an ...