ok, a subaru that starts cold runs good, then looses spark after reaching running temperature.

 

After a rough run through I have determined the problem to be the reluctor pick-up inside the distributor. This problem was tricky to diagnose as the car started well by the time you purchased and installed any new part.

 

so if anyone ever has this issue check out the distributor pickups or modulators inside a distributor.

 

This particular vehicle 1984 ea81. peace gang:burnout:

heat sensitive problems like this are typically ignition related - like the distributor in this case. coils can be freaky with temps too.