Hey Guys,I'm stuck! I have a '91 Civic and it starts up just fine. But after a few minutes or after its warmed up it stalls. It just turns off and then wont start back up like there's no gas/spark.The next day or after it's been sitting for awhile, same thing. Turns on fine. Idle is good. Just normal. The dies and wont start.I changed the spark plugs, wires, I cleaned out the EGR valve, and the air filter looks clean. No gunk in the throttle body. Next on my list is the fuel filter and the distributor cap/rotor. I just think it's weird.Thanks for the input in advance guys.