Inspection of the ignition coil and spark test
Check for DTCs.
Note. If a DTC is found, follow the troubleshooting procedure for the problem.
Check for spark.
Remove the #2 cylinder head cover.
Remove the ignition coil.
Pic. 2.604. Disconnecting the crankcase ventilation hose
Disconnect hose No. 1 of the crankcase ventilation system from the cylinder head cover (pic. 2.604).
Note. During installation, you must ensure that the label (painted) and the hose clamp were located in the same places.
Disconnect 4 injector connectors.
Pic. 2.605. Removing spark plugs
Using a 16mm spark plug wrench, remove 4 spark plugs (pic. 2.605).
Tightening torque: 25 Nm.
Install the spark plugs to the ignition coils and connect the coil connectors.
Connect spark plugs to ground.
Pic. 2.606. spark plug
Make sure that sparks form on each candle when cranking the crankshaft (pic. 2.606).
Note. When checking, be sure to connect the spark plugs to ground.
Note. If an electric shock is felt when touching a working spark plug, the ignition coil should be replaced.
Note. It is forbidden to scroll the crankshaft of the engine for more than 2 s.
Note. If no spark occurs, perform the following checks.
Checking the spark plug
Pic. 2.607. Spark Plug Cleaner
Clean the spark plug (pic. 2.607).
If there are traces of carbon deposits on the electrode, remove it with a spark plug cleaner and dry with compressed air.
Air pressure: less than 588 kPa.
Blowing time: less than 20 s.
If traces of oil are found, remove them with gasoline, then use a spark plug cleaner.
Perform an external inspection.
Pic. 2.608. External inspection of the spark plug
Check for damage to the threads and insulation of the spark plug (pic. 2.608).
Replace spark plug if damaged.
Recommended spark plug types
Pic. 2.609. Checking the gap between the contacts of the spark plug
Check spark plug gap (pic. 2.609).
Using a feeler gauge, measure the gap between the spark plug electrodes.
Nominal value: 1.0-1.1 mm for a new spark plug.
Maximum allowable value: 1.3 mm for a used candle.
If the gap exceeds the maximum allowable value, replace the spark plug.
Checking the camshaft position sensor
Check resistance.
Pic. 2.610. Measuring the resistance of the camshaft position sensor connector
Measure the resistance between the terminals with an ohmmeter (pic. 2.610).
Verification conditions
Note. The above definitions «cold» and «warmed up» refer to the temperature of the sensor coils. «Cold» – from –10 to 50°C and «warmed up» – 50–100°C.
Note. If the resistance is not within specification, replace the camshaft position sensor.
Checking the crankshaft position sensor
Check resistance.
Pic. 2.611. Measuring the resistance of the crankshaft position sensor connector
Measure the resistance between the terminals with an ohmmeter (pic. 2.611).
Verification conditions
Note. The above definitions «cold» and «warmed up» refer to the temperature of the sensor coils. «Cold» – from –10 to 50°C and «warmed up» – 50–100°C.
Note. If the resistance is not within specification, replace the camshaft position sensor.