1.
Disconnect the ignition coil connectors (A).
[MPI]
[GDI]
Disconnect the ignition coil connectors (A).
Remove the ignition coils (A).
Tightening torque :
3.9 ~ 5.9N.m (0.4 ~ 0.6kgf.m, 2.9 ~ 4.3lb-ft)
Using a spark plug socket, remove the spark plug.
Install the spark plug to the ignition coil.
Ground the spark plug to the engine.
Check if spark occurs while engine is being cranked.
To prevent fuel being injected from injectors while the engine is being cranked, disconnect the injector connector.
Crank the engine for no more than 5 ~ 10 seconds.
Inspect all the spark plugs.
Using a spark plug socket, install the spark plug.
Install the ignition coil.
Reconnect the ignition coil connector.
Disconnect the ignition coil connectors (A).
When disconnecting the ignition coil connector, pull out the locking pin (A) and then pull out the connector while pressing the clip (B).
Remove the ignition coils (A).
Tightening torque :
3.9 ~ 5.9N.m (0.4 ~ 0.6kgf.m, 2.9 ~ 4.3lb-ft)
Using a spark plug socket, remove the spark plug.
Be careful that no contaminates enter through the spark plug holes.
Inspect the electrodes (A) and ceramic insulator (B).
Condition | Dark deposits | White deposits |
Description | - Fuel mixture too rich - Low air intake | - Fuel mixture too lean - Advanced ignition timing - Insufficient plug tightening torque |
Check the electrode gap (A).
Standard
MPI (Unleaded)/GDI: 1.0 ~ 1.1 mm (0.0394 ~ 0.0433 in.)
MPI (Leaded): 0.8 ~ 0.9 mm (0.0315 ~ 0.0354 in.)
Measure the primary coil resistance between terminals (+) and (-).
Standard value: 0.62Ω ± 10%
