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

Any idea how much power a V3 MS1 board uses? I have it wired up to constant power source. Any idea how much current it draws, or how long it would last on a battery. I figure the stock EFI PCM always has power, maybe Megasquirt can too?

Thanks.

Well, I just got this taken care of. I ended up splitting the hall signals, so that both megasquirt and existing PCM can read signal. This means the stock PCM can continuing to power the existing relays and ballast resistors for controlling power to things. I think this is the best solution.

I ...

Well, I'm able to start the jeep :D This was temporary though as I had the relays jumpered. I'm thinking the -best- solution is to leave the stock comptuer controlling the relays. This would also allow it to drive the tach.
I realize MS can do this, but I think its best for the stock to do this job ...

I have a related question to the original. It turns out I also had to jumper the fuel pump to get it to work, as the same signal to turn on ASD relay was sent to FUEL relay. Well, Im going to use the pin 37, fuel pump relay signal to take the place of that signal, so that should be all good. Theres ...

Cool, thanks. I guess I'll be using pin 37 to control the relay then.

I ran into a problem with my jeep, where the stock computer turns off power to everything via a relay if it doesnt recieve hall sensor input after 2 seconds. I'm using the hall sensors on the MS, so I had to jumper the relay to keep power on. I only did this for testing and have no intention of ...