A heads up from the NZ club. I just found that a large number of the local members have switched to the R32/R33 Skyline PTU, a bulletproof unit that works extremely well. Also, they all recommend relocating from the current position, up to near the intake or to the firewall or guard, to minimise heat. I dunno how many R32s you guys have there, but we have wreckers yards full of 'em here, and bits are cheap - 25% of the Z price.
Can a faulty PTU cause sporadic and intermittant misfire issues? Or does it generally stop the car, like my last faulty PTU?