Ignition System

REMOVAL
The electronic ignition coil pack attaches to the cylinder head cover.





1. Disconnect electrical connector from coil pack.
2. Remove coil pack mounting nuts.
3. Remove coil.
4. Remove spark plug cables.
5. Remove the spark plug using a quality socket with a rubber or foam insert.
6. Inspect the spark plug condition. Refer to Spark Plug Condition.





7. Remove camshaft position sensor mounting screws on the rear of the cylinder head. Remove sensor.





8. Loosen screw attaching target magnet to rear of camshaft.





9. Remove crankshaft position sensor mounting screw. Remove sensor

INSTALLATION
1. Install crankshaft position sensor.





2. The target magnet has locating dowels that fit into off-set machined locating holes in end of the camshaft. Install target magnet in end of camshaft. Tighten mounting screw to 3 Nm (2.2 ft. lbs.) torque.
3. Install camshaft position sensor. Tighten sensor mounting screws to 9 Nm (6.5 ft. lbs.) torque.
4. To avoid cross threading, start the spark plug into the cylinder head by hand.
5. Tighten spark plugs to 28 Nm (20 ft. lbs.) torque.
6. Install spark plug insulators over spark plugs. Ensure the top of the spark plug insulator seals the upper end of the spark plug tube.





7. Install ignition coil pack. Connect spark plug cables to coil pack. The coil pack towers are numbered with the cylinder identification.

INSPECTION

Spark Plug Cable
1. Resistance must be between 3,000 to 12,000 ohms per foot of cable. Replace any cable not within tolerance.

Ignition Coil





1. Measure the primary resistance of each coil. At the coil, connect an ohmmeter between the B + pin and the pin corresponding to the cylinders in question. Resistance on the primary side of each coil should be 0.51 - 0.61 ohm. Replace the coil if resistance is not within tolerance.





2. Remove ignition cables from the secondary towers of the coil. Measure the secondary resistance of the coil between the towers of each individual coil. Secondary resistance should be 11,500 - 13,500 ohms. Replace the coil if resistance is not within tolerance.