Circuit Description

See DTC P0300:  RANDOM MISFIRE DETECTED circuit test. Condition

Two conditions can cause code to set. These are:

• During any particular 200 revolutions of engine, misfiring is detected which can cause catalytic converter overheating and/or damage.
• During any particular 1000 revolutions of engine, misfiring is detected which can cause a deterioration in emission levels.

For possible causes, see DTC P0300:  RANDOM MISFIRE DETECTED circuit test.