Replace that coil its done. Think of it like a fuse... when it gets too hot (not engine temp) it shuts off. I had the same problem. Good luck finding one. I'm %90 sure Nissan doesn't have them anymore. Goto your parts store (IE checker/autozone/etc.) and ask for a coil pack for a 88' Nissan Pulsar NX SE 1.8L. Its the USDM non turbo version of our motors (CA18DE). Last time I needed one it was a special order item. Thats what happens when you have a 20yr old motor. Sorry Rogo CA has coil packs on all 4. Your still my hero though!