2.
Check the air cleaner whether it is blocked or not.
Impossible starting could be caused by blocked Intake and exhaust system. Therefore intake and exhaust system intake/exhaust system restriction should be checked.
Remove the air cleaner
Check the air cleaner whether it is blocked or not.
Is air cleaner normal?
YES
Go to "ISCA Inspection" procedure as below.
NO
Replace the air cleaner.
Connect a scantool to Data Link Connector(DLC).
Select the ISCA duty by using flight record function.
Engine "ON"
Check the graph of the current data.
Is graph normal?
YES
Go to "Catalytic converter Inspection" procedure as below.
NO
ISCA is blocked or stuck.
Engine "ON"
Check the exhaust gas from the exhaust pipe.
Is exhaust gas discharged normally?
YES
Intake and exhaust system are OK.
NO
Catalytic converter is blocked.
