Fpr has never caused a no crank situation. If your car doesn't crank but you can push start it then it's most likely the starter. Take it out and bring it to be tested. In my other cars when the starter failed it was same way. One time start right up and another time nothing.So would that imply that it is not my fpr but my starter. Cause my car doesn't even crank anymore. But if I wait like 8 hours it will turn on no problem...like this morning it started fine.