Yeah, I was going to go with the same thing. Check the wiring at the ECU. Make sure the harness is in nice and tight, and like he said - check the restistance across those wires if you can
Um... I'm gonna leave the details for Dudeman... but I'm pretty sure we got it worked out. He doesn't want to jynx it though, we haven't had a chance to drive it yet. All I gotta say is "go nissan datascan!"