1.
Remove the spark plug cable.
Remove the spark plug cable.
Using a spark plug socket, remove the spark plug.
Install the spark plug to the spark plug cable.
Ground the spark plug to the engine.
Check is spark occurs while engine is being cranked.
To prevent fuel being injected from injectors while the engine is being cranked, remove the fuel pump(A) relay from the fuse box.
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 spark plug cable.
Remove the spark plug cable.
When removing the spark plug cable, pull on the spark plug cable boot (not the cable), as it may be damaged.
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
Unleaded : 1.0 ~ 1.1 mm (0.0394 ~ 0.0433 in.)
Leaded: 0.9 ~ 1.0 mm (0.0354 ~ 0.0394in.)
Carefully remove the spark plug cable by pulling on the rubber boots (A).
Check the condition of the spark plug cable terminals (B), if any terminal is corroded, cleans it, and if it broken or distorted, replace the spark plug cable.
Connect the ohmmeter probes and measure resistance.
RESISTANCE : 5.6kΩ/m ± 20%
Resistance should not be higher than 10kΩ/m.
If resistance is higher, replace the cable.
Measure the primary coil resistance between terminals (+) and (-).
Standard value: 0.87Ω ± 10%
Measure the secondary coil resistance between the high-voltage terminals for the No.1 and No. 4 cylinders, and between the high voltage terminals for the No. 2 and No. 3 cylinders.
Standard value: 13.0kΩ ± 15%
Be sure, when measuring the resistance of the secondary coil, to disconnect the connector of the ignition coil.
Remove the engine cover.
Disconnect the spark plug cables and the ignition coil connector.
Remove the ignition coil (A).
Installation is the reverse of removal.
