might be another dumb suggestion but have you got a manual ecu or auto ecu?

thanks lethal but yer its a manual ecu, i got everything from my mates 180sx except wiring harness!! got harness off some gay Fark on ebay..

cas signal wire should be shielded.
may have been replaced with crap wire? and picking up noise
there are tests in the service manual for backprobing all this stuff

UPDATE fully been lyin to u guys but not really, ended up usin a test light i have that weak of a spark n injector pulse the noide light couldnt pick it up, only a led test light could that weak it cant jump spark across the plug gap!! any ideas now im farken ova my datto

if you have a weak spark i could/would be a voltage drop across a wire or component. check you have 12 volts and not something like 10 or 11 volts at your coils. i found that the coils needed no less than 12 volts for my system to work, i found this out after loosing 1 volt over a relay which took weeks to realise that 1 volt can prevent it from working

serial neva had that problem eva but thanks man will try, n keep u informed jsut want the thing to ring n purr