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View Full Version : How to make sure MS board is OKay

fige
11-07-2009, 07:49 PM
What's the best way to find out if the MS board is okay and that it's only a wiring issue?

Hooked everything up temporarily. but MS board is not getting power
domox
11-07-2009, 08:39 PM
Hook it up to a stimulator.
VolvoPunch
11-07-2009, 08:43 PM
Yep you will need a simulator to be sure.

http://www.diyautotune.com/catalog/jimstim-megasquirt-stimulator-with-wheel-simulator-assembled-p-178.html

The guys at DIY Auto Tune are great, I took my MS unit over to them (Russ) this week because I was having ignition and fuel problems and he tested the unit out for me at no cost.

But you said you ms unit is not getting power, check your grounds and your power cable. Also make sure that your DB-37 connections are clean and non of the solder points on touching.
fige
11-08-2009, 10:06 PM
So. The MS box does not work in friends car either. (my wiring is ok).

The LED's get power (but dont glow), and the board apparently gets power. BUt the computer cant recognize any com ports.
JohnMc
11-08-2009, 10:32 PM
I've found that when MT and the firmware on the MS are wildly out of synch in terms of type and version, they might not talk to each other.
fige
11-09-2009, 12:13 AM
I've found that when MT and the firmware on the MS are wildly out of synch in terms of type and version, they might not talk to each other.

It did turn on the fuel pump and turn on his injectors.... but that's about it.

http://forums.turbobricks.com/showthread.php?p=2758038#post2758038
domox
11-09-2009, 12:16 AM
Jumper it and reflash it.
JohnMc
11-09-2009, 10:34 AM
It did turn on the fuel pump and turn on his injectors.... but that's about it.

http://forums.turbobricks.com/showthread.php?p=2758038#post2758038

That sounds like what they do when they can't think of anything else to do (aka you do a reflash and forget to unplug the coil and injectors).

I'd to a jumper reflash to a known firmware version, then make sure MT is expecting the same version and try reconnecting.
Lord_Athlon
11-09-2009, 11:26 AM
It didnt click them on and off, which is what it usually does. It was just an open ground/short.
fige
11-09-2009, 09:09 PM
Bridged socket 12 and 13 on Processor plug. It was communicating.

THere is no communication WITH the processor ON the board. So I am suspecting fried processor.
Gotta find a replacement local somewhere.
500dollar744ti
11-09-2009, 09:23 PM
did you try a jumpered reflash?
fige
11-09-2009, 09:26 PM
did you try a jumpered reflash?

there is no communication. I can't reflash it when I can't talk to the processor. :-(
GTJordan
11-09-2009, 09:27 PM
I had the same problem. A reflash worked. I made sure to get the corrisponding megatune version at the same time.


Jordan
500dollar744ti
11-09-2009, 09:27 PM
you can still force a reflash, the worst that happens is it doesn't work.. just because it's not communicating doesn't mean it's dead.
MrBill
11-09-2009, 09:28 PM
yeah there's a thread somewhere that says the forced reflash woke up a bunch of MS chips. The convo was between a bunch of bama rednecks.

kenny and benflynn i thinks
fige
11-09-2009, 09:51 PM
link?
fige
11-09-2009, 09:54 PM
followed these steps:
http://www.diyautotune.com/faq/troubleshooting_megasquirt_communications.htm#ms1f lash

but it wont even show
"Boot>"


and cant enter anything in the terminal
fige
11-10-2009, 01:05 AM
anyone?
JohnMc
11-10-2009, 10:33 AM
Dunno, if that isn't working, that's about as basic as you can go. From there I guess you'd step back to doing basic board assembly checks?

I didn't build mine (thanks Kenny!) so I don't know too much about that.
domox
11-10-2009, 02:16 PM
Sounds like a dead processor. Order a replacement.
jao
11-11-2009, 01:11 PM
i found another processor here felix, along with my msii processor
fige
11-11-2009, 02:26 PM
I'll be crashing at your house tonight anwyay (not sure if mike told you). Excellent