DTC P0301, DTC P0302, DTC P0303, DTC P0304, DTC P0305 &/Or DTC P0306: Notes

WARNING: This page is about a different car, the 2002 Lexus ES 300. However, it is still accessible from the selected car via links, so may be relevant.

Code Definition

DTC P0301: Cylinder No. 1 Misfire Detected
DTC P0302: Cylinder No. 2 Misfire Detected
DTC P0303: Cylinder No. 3 Misfire Detected
DTC P0304: Cylinder No. 4 Misfire Detected
DTC P0305: Cylinder No. 5 Misfire Detected
DTC P0306: Cylinder No. 6 Misfire Detected

NOTE: When 2 or more trouble codes for a misfiring cylinder are recorded repeatedly, but DTC P0300 is not recorded, it indicates misfires were detected and stored into ECM memory at different times.

NOTE: For component location, see appropriate illustration in THEORY & OPERATION article.