Detection Condition
WARNING: This page is about a different car, the 2002 Mazda B4000, 2002 Mazda B3000, and 2002 Mazda B2300. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0300 indicates multiple cylinders are misfiring or PCM cannot identify which cylinder is misfiring.
DTC P0301-P0306 indicates random misfire detected or identified cylinder misfire is detected. DTC number indicates cylinder number.