It's very difficult to do fault finding at component level on the car.
So best to get a Stim. This plugs into MS and proves an easy way of powering it up on the bench - via either a suitable mains power supply or battery. It also generates a tach signal, so will make MS 'work' - ie drive the injector and spark circuits. Which you can then check through with a DVM etc, to see where the spark signal stops.
If you go for a JimStim, that has a number of 'spare' LEDs which can be jumpered to flash with each coil output. As well as simulating a variety of toothed wheel tach signals.
No. I would suspect the ignition outputs are not right but without the board in hand it would be difficult to understand what the builder was building.
Graduate of EFI University.
I build, repair, install and tune Megasquirt systems in North Dakota and beyond!
Post to the MS1 section or move this post to that section for better help.
Many who browse this section have never run an MS1. (very different)
More info regarding your setup will be needed.
Wasted spark?
Smart or dumb coil?
Etc....
You do not need to connect to the MS to get an MSQ if you have previously connected.
Tuner Studio will save the MSQ as "current tune" in the project folder.
Correctly identify your MS ecu here
Read the Do's and Don'ts to avoid the common pitfalls before starting your install or asking for help
Use only these manuals other manuals may cause brain damage or worse.
