I posted here before about my 90 Civic. Car would just die and then start right back up. Then it died and would not start up. Replaced rotor (which was nasty), cap, plugs, wires, fuel filter, air filter. Started right up. Went 300 miles and then died and started right back up. Went 50 miles, died and would not start up. Had it towed to my mechanic and it started up when we got there. He drove it and hooked it up to computer. Driving fine and not spitting out any code. He's baffled and so am I.

Anyone want to take a shot at it.