MS assembly test

[ST1G]

So I'm assembling a MS II V3 board (most up to date firmware) for another project and i've ran into an issue. I'm just done with step 51 (i've set the board up for a hall sender) and i'm testing to if i've done the last few steps correctly.

Well in Tuner studio I'm not getting a tach single... The gauge is just flicking from zero to max and turning red over and over.

The barometric pressure is reading perfect.

I've checked all my solder connections and they look good, I've touched up a few that looked anything but great.

Nothing.

I'm not really sure what to do at this point. Any advice would be helpful.

[whodwho]

What engine are you building it for? Which Stim are you using?

It sounds like it might be a setting conflict

65535 rpm displayed and a fuel pump pulsing on and off is the code telling you that you have made a configuration error in your settings.

It has NOTHING to do with the hardware, so don't start cutting wires or questioning sensors or anything like that.

FIX YOUR SETTINGS.

The most common errors are a conflict on output pins, e.g. you have stepper idle enabled but also set a tacho output on the same pin. It is impossible to use the same physical pin for two things so the MS2 stops and tells you there is a configuration error.

TunerStudio will often pop up a message box showing you what the configuration error is.
If you are seeing 65535 rpm, but no message, go to Communications and Mini Terminal. Then turn your Megasquirt off then back on again. You will see a message displayed telling you why the code found a problem with your settings.

http://www.msextra.com/forums/viewtopic.php?f=101&t=31532

[nando]

yeah, sounds like a config error.

do you have a stim?

[ST1G]

Building it for a Mark 2 Golf GL 1.8 8v

Yeah, using Megastim 2.2? The stim has been used to build two other MS II v3 boards.

I'll check and edit the posting.

[ST1G]

Figured it out, I had an old firmware version on the chip.

Its working perfectly. Thanks guys.