DTC P0300, DTC P0301, DTC P0302, DTC P0303, DTC P0304, DTC P0305 &/Or DTC P0306: Notes

WARNING: This page is about a different car, the 2003 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.

Code Definition

DTC P0300: Random/Multiple Cylinder Misfire Detected
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: Cylinder No. 1 is front cylinder on passenger's side of engine. Cylinder No. 2 is front cylinder on driver's side of engine. Cylinders No. 1, 3 and 5 are on passenger's side of engine. Cylinders No. 2, 4 and 6 are on driver's side of engine.

NOTE: For any particular 200 revolutions of engine, misfiring which could result in overheating of catalyst is detected. This will cause MIL to blink (1 trip detection logic).

NOTE: For any particular 1000 revolutions of engine, misfiring which could result in a deterioration of emissions. This will cause MIL to light up (2 trip detection logic).