S13 SR20DET ignition problem

[DoonCoonVaroon]

Folks, I have an S13 redtop SR20 in an S14. I have hooked up all the wires and i am only getting spark at the front coil pack when i crank the engine. Everything else is in check. I have heard that this problem is most likely related to me having an x-type harness where some pins need to be re-arranged at the ECU plug. Does anyone have any details on this or any other suggestions as to why i am only getting spark at the front cylinder? I have 12volts at all of the coils and the ignitor checks out ok according to the FSM test procedure

Cheers.

[the head]

also see if you are getting signal on the triggers going into the ignitor that way you will be able to trace the problem back through each component.

[DoonCoonVaroon]

on those 4 wires that come from the computer to the igniter, what sort of voltage should i expect to see, i expect that it will be a pulse but if anyone has taken readings before it would give me a good place to start.