91 xj no spark

i have a 91 xj i have no spark was at Huntsville and it just died i have replaced coil crank sensor and the computer still no fire at the coil i think its the distributor not sending a good signal to the computer what do yall think before i throw more money at it


thanks for the help

sam

if you want you can call me with some info 281-608-1268

1. Spark: 12v from ignition switch to ASD relay, then from the ASD relay to the coil primary side. Check for 12v to the coil while cranking.

2. The crank sensor generates a signal to the PCM, the PCM then will collapse the primary side of the coil to trigger the spark through the secondary side of the coil.

So, check for 12v from the ignition switch to the ASD relay; check for 12v to the coil; check for a triggering signal from the PCM to the negative side of the coil--it would be a ground interruption.