00sadly it is still acting up.... it is still suffering from a rough idle for like 2 min after start up... but only when the engine is warm.... if it is cold it starts and holds the idle just fine..... the codes where o2 sensor and knock sensor...and a injector ...I believe number 3...which was replaced with a used checked one....The knock sensor was replaced like 2 years ago....with a new one off of ebay.... and the o2 sensor is about 3 years old....the car has 217,000 miles on it... would a fuel pump be going now???