My 1992 Accord won't start at times. It never stops or shuts off on me while driving but sometimes it refuses to start. I spray starter fluid into the injection chamber and it starts. This problem occurs every two to three weeks and I'm getting afraid of being stranded. I have good fuel pressure. This car has a security system (add-on) with a starter shutoff. Any suggestions? I hate to get rid of the car if there is a simple fix.