Turn the key and it will crank over all day long, just won't fire. Doesn't do this all the time either. Some days it will fire every time, some days it won't. And its not just a day by day issue, it can and does sometimes change by the hour. I've ruled out the module in the dist as it either is or isn't working, ruled out the coil(took the one out of my burb and put it in my dads and the issue was still there). Only thing I haven't looked at yet is cap/rotor and ignition switch. Could it be one of those or something completely different?