Mazda MAZDA3 2012–2013 — technical service bulletin
Bulletin 01-020-15-2930 · NHTSA communication 10105463 · issued Aug 18, 2015
Technical service bulletin
communication type
Equipment
component
2012–2013
model years
2
vehicle entries
Official summary
Some vehicles may experience the check engine light on with dtc p0300:00, p0301:00, p0302:00, p0303:00 and/or p0304:00 stored in memory. P0300:00: random misfire detected p0301:00: cylinder no.1 misfire detected p0302:00: cylinder no.2 misfire detected p0303:00: cylinder no.3 misfire detected p0304:00: cylinder no.4 misfire detected carbon may be deposited around the intake valves, resulting in unstable engine combustion and misfiring during the accelerated warm-up system (aws) operation.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.