RoyzMG

I'm currently setting up an '01 Miata engine for use by a recently completed MegaSquirt III with a 3X Expander. My question is a basic one unique to the Miata engine. This engine has what appears to be one ignition coil for two cylinders, one connected to cylinders 1 and 4 and one coil for 2 and 3. I'm assuming these are what's called "wasted spark" coils and as such can be connected directly to the 3X card.

If this is correct then Spark A should be connected to the cylinder 1 and 4 coil and Spark B should be connected to the cylinder 2,3 coil.

Am I missing something obvious?
Thanks in advance,
Roy

MF-Brain

iTrader: (1)

correct sir. you should follow what y8s has been doing with his and specially the flyback mod for the VVT.

RoyzMG

Thanks Brain for the confirmation -

Where would I find Y8s' discussion of VVT?

Roy

MF-Brain

iTrader: (1)

maybe over at msextra.com and over at miataturbo.net

basically the vvt driver on teh ms3x needs a slight mod for the flyback or it overheats. Otherwise, I can help you with any other ms3 questions

RoyzMG

Thanks Brain-
I found the discussion and the fix suggested by y8s.

Here it is if anyone is ever interested

http://www.msextra.com/forums/viewto...lyback#p279479

Cheers,
Roy

MF-Brain

iTrader: (1)

yeah its a simple mod.

y8s

Actually you may want to read this thread:
http://www.msextra.com/forums/viewto...enough#p309407

read from that post to the end.