CHECK CAUSE OF MISFIRE.
QUESTION

Has the cause of misfire been detected while running the engine?

Yes No

Finish diagnostics operation, if the engine has no abnormality.

Repair the poor contact.

NOTE:

In this case, repair the following item:

Poor contact of ignition coil connector

Poor contact of fuel injector connector on faulty cylinders

Poor contact in ECM connector

Poor contact of coupling connector