I drive a 2000 civic si, lately its been acting up. Once in a while I would be driving then the engine would just suddenly shut off. No warning. I still get battery cause my lights and radio is fine when this happens. When I try to start the car back, it would kinda of sputter until I press on the gas and reving it up. The car doesn't act up once I get it going. It just seems strange that it would silently do this with no warning. Sometimes, i feel like it is losing power, just a bit. Doesn't feel like it should running.

I seem to think its the throttle body needing some cleaning. Im not sure. any help is appreciated. Thanks.

 

I think you should test your TPS