cranking but no spark

[xjdestroyer]

I have now had my jeep in the shop for a week. They found out my crank positioning sensor was bad. They had changed it out for a new one and it didn't change anything. Still no spark. Any one have any ideas.

 

[accorn]

What year?

 

[ehall]

Check for spark AND fuel injector pulses. If you don't have injector activity then it is either crank sensor, cam sensor, or computer. If you have fuel but no spark, then it is ignition related.

 

[RoyalXJ]

Usually the crank sensor

 

[go1lum]

I had a fuse blowing on my 98 from a fuel pump wire shorting out. When this happened it was killing spark and fuel. It was a small 15amp in the pdc.

 

[ehall]

Dang that reminds me--the ASD relay can also kill spark and injectors