can someone please tell me how to check my coil packs on my94 wrx

 

why are you wanting to check them?, what i mean is do you have a problem with the running of the car?, ie missfire on WOT and or 3 cylinders from cold on idle?.

haven't heard of a direct off the car test for the coil pack, but if symptomns are as above I've had these and they went after new coil packs were put on

 

This us discussed in great detail here

JGM