i heard you can put the end of a flat head screwdriver against it and put the handle to your ear and if you hear a nice even ticking sound its firing. random ticking is bad tho. never tried this idea myself.
It's right in front of rear drivers tire on frame rail one end has plastic clip other end you need 13/16th wrench and 5/8 wrench to replace. REMEMBER disconnect battary cable work on 95's also
Well i own a 93 z28 and i do enough work on it to know that a z28 comaro has a v-8 engine so it would have to be 8 because you need a fuel injector for each cylinder