Result

Misfire Count

Proceed To

Most misfires occur in only 1 or 2 cylinders

A

3 cylinders or more have equal misfire counts

• If it is difficult to reproduce misfires for each cylinder, check the DATA LIST item called MISFIRE MARGIN. Try to find vehicle driving conditions that lower the MISFIRE MARGIN value. Values above 30 % are considered normal.

• If the freeze frame data's record of the ECT is below 75°C (167°F), the misfire may be detected only when the engine is cold.

• If the freeze frame data's record of the ENGINE RUN TIME is below 120 seconds, the misfire may be detected immediately after the engine is started.

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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