Miatacrazy716

iTrader: (2)

Yeah I was told it would work but I guess I was under the assumption you just wired it up through your stock ecu wires. I should have figured since its meant for small engine applications it was not a easy use. If I gutted the entire car and went straight track car it would be alot less confusing and easier to install

deezums

iTrader: (3)

You could use the stock ECU wires, just putting new sensors on the other end, but you'd still probably need to run more, maybe. Say you need a GM map sensor, mounted directly to the intake. Could repurpose the canister purge wiring, maybe, as an example. Going back to stock would be fuun.

Not to mention, it would be a super hack-job done that way. I don't even like having my IAT sensor taped up to the old AFM plug...

Ben

iTrader: (33)

Actually, my wife is the genius supermodel who can build an ECU in 2 hours. I'm here for the punch and pie.

No reason why you can't use a Microsquirt EMS to run a Miata engine. It's the same core processor as MS2 and DIYPNP, but a different form factor. It's more intended for a wire-in application / EFI retrofit on a powersports vehicle, but works in a car great, too.

It's really just a matter of wiring this thing up. A couple pull up resistors will be needed for cam and crank sensors. These can be added to the wiring harness or can be tacked on the bottom side of the PCB at the ampseal header. If the later sounds confusing, just do the former.

An external boost control circuit would be required (assuming you are not willing to sacrifice the idle valve). 3 components and less than $10.

A DIYPNP may be a more traveled and arguably easier route, but what you have will give you the same results.