91 300zx TT right hand drive - no spark

I am having a spark issue with my 91 300zx twin turbo. I have no spark on all six cylinders. I changed the PTU to the newer style with conversion harness but still no spark. Any idea what else could be wrong?

Didn’t you start this last thread?

http://torontonissan.ca/forums/showthread.php?t=4102

Why don’t you follow up with that thread instead? I will post there after I post this.