My 87 GN has no fire. Had it fixed about an hour ago until I drove it about a mile and it shut off again with no spark!! Here's what Iv'e done so far...When it shut off while driving the other day,the first thing I did was check for spark..no fire.I changed the coil pack and had the module checked at the same time..still no fire. I put a new crankshaft sensor on.. no change. Then I did what I should have done first..checked the ecm fusus in the fuse box. Both ecm 10 amp fuses were good but the one labled ccci in the top left corner of the fuse box was blown! I did'nt have a 10 amp so I put in a 30 amp and the car fired right up. Thought I had the problem fixed so I took it for a drive and about a mile down the road it completely shut off again! So I checked the fuse again but this time it is not blown!! None of the other ecm fuses are blown either. I'm back to having no fire again. The ccci fuse blew for a reason in the first place obviously. Can anyone guide me to what is causing this. It's gotta be a short somewhere but no fuses are blown this time.