Engine stating problems. Have to pump gas pedal smoke coming out exhaust. Oil good, air filter good. Checked codes, since Malfunction Indicator Light flashing. Codes 300: random multiple cylinder misfires detected, 306: cylinder 6 misfire, 157: o2 sensor low voltage bank 2 / Sensor circuit 2, 158: o2 sensor circuit high voltage bank 2 / sensor 2

 

Moved to the correct section.