Hi , I bought a 2000 Civic ex about a month and a half ago and it always idled around 500 rpms and always sounded like it wanted to die (bogg) at stop lights and when I take off it would jerk. Recently it died. I replaced the distributor, spark plugs & wires, timing belt, head gasket, battery, fuel pump, crankshaft position sensor, and my alternator. I was told it could be the ECU. Also I checked all fuses and relays under the hood. Thank you.