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Old 01-30-2015, 08:42 PM   #1
Cpt. Slow
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Default MSPNP2 not connecting

Just traded my MS1 for an MSPNP2, a V1.2 with a red board.

It seems to be powering up fine, it primes the fuel pump and the #1 and #2 LEDs turn green.

I cannot however, connect to it via my laptop. I've tried 2 serial cables and 2 USB-serial adapters, including one I bought from DIY and have tuned dozens of megasquirts with.

I've plugged it into Oregonmon's unmolested wiring harness and it does the same thing. His is wired for VVT, '01+ CKP/CMP, and sequential injection, so it didn't run on his.

Mine currently has nothing bolted to the exhaust side of the block, so I can't try to run it on mine either, although I have no idea what kind of map is on the car anyways.

I've also tried connecting it to the firmware uploader, no go.

I'm wondering if there's a jumper that's been moved?

Anyone have anything for me to try?

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Old 01-30-2015, 11:56 PM   #2
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Ignore me! Just had to wipe and reload the firmware.

This isn't the easiest procedure to find.

But for any future v1.2 users out there: With the unit powered off, open the box by removing the top 2 screws on either side. I then stole the clutch switch jumper to jump the two boot pins. Power on the MS with it hooked up via your serial-usb cable to your laptop.

Then load the ms2loader_win32 after downloading the latest ms2 firmware here:

Megasquirt Firmware Downloads - Megasquirt EFI

Then follow the on-screen prompts as to when to have the jumper installed, and when not too.

Yay I can change my signature!
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