So close to spark control....
 

I've hooked up the spark control (2 wires should be easy right?) car started after a bit of peursuasion from stone cold, and then it ran!

except it sounded rough, so whilst it was running, I lulled the plug leads stareting from the front of the engine, 1st one as soon as I pulled it i heard clicking/arcing so that one is geting spark. next one, nada, nothing, same with three, then on lead 4 I get arcing again.

So I'm running on 2 cylinders (and pretty smoothly considering...) both coils are firing, but only on one side of each coil :(

Pluggin in the stock ECU's control makes everything normal again.

yet again Help! any ideas? I'd love to get spark going now and have everything tidied away! ;)

many thanks in advance!

Richy

just double checked my wiring diagrams, I'd wrongly assumed that coil A controlled 1 & 2 and B 3 & 4.

A controls 1 & 4 and B conrtols 2 & 3, so I have a problem somewhere with my coil B output :-(

Could it be config based? or is it more likely something to do with my mdifications on the MS board it's self?

I'm even more confused now,

accoring to a DB37 to stock ecu pinout I've got Coil A which is the brown wire should go to the wire on pin number 29 on the DB37 and coul B (brown yellow) to pin 31 on the DB37

Now pin 29 goes to IAC2A according to the external wiringdiagram I got with my prebuilt loom. and pin 31 goes to ICA2B

looking at this picture of my modifications
http://www.asbi52.dsl.pipex.com/megasquirt/MS30.jpg
I've got one wire going into ICA2B which is the coils that are working, but I've not got anything plumbed into ICA2A.....

However I can't actually see anything wrong with my mods, so why don't I have spark on plugs 2 & 3?

I've gone over everything a million times then suddenly this sentance jumps out at me on Jerry site

When wiring up your ECU later: Spark Output A will come out on pin36, and Spark Output B will come out on pin31.

and specifically the bit in bold.

I'm a dumbass, and it now works perfectly MS rocks!

I've replied to myself 4 times in my own thread, tho writing it all down helped to collate my thoughts I think...

Thanks for putting up with me!

Heh, keep doing it... then when i get to that point... i remember :p

lol will do! ;)