I have a 90 na 300zx and I just did a motor swap into it. I got the motor from a friend of mine. I put motor in but now I have atleast 3 misfires as I pull the coil pack connector one by one and 3 of them make no differences. I have swap coil packs and ohm them and they are good. Still no spark. I checked the connector 12v power and ground is good and so is resistance to ptu connector. So I have good connector and pack. All the injectors is good thru the ticking test. Cleaned all connector wit electrical cleaner Start car up no spark. I have no spark in the front passenger cylinder , furthest rear passenger and middle driver side cylinder. I'm stuck as to why I have no spark wit good connector and coil pack thanks
Follow Ups
Urgent help No spark very weird problem - Diplomat100:11:51 07/31/15