I have a 99 Civic LX with 1.6 engine the car has 100k miles. The car starts and runs fine and then just shuts off as though you would turn off the ignition. I have change the Main Relay, and the O2 sensor and the problem pressist. Can anyone tell me what I should try next?

Thx,
Cary

 

Spark plugs, fuel filter, fuel injector, the relay from your wires, the wires connecting your spark plugs.