Ignition System - 1.8L: Other Kia Spectra II

IGNITION COILS

The DOHC engine employs two ignition coils located directly above the No. 2 and No. 4 spark plugs. The coil resistances are identical for both coils. No maintenance is required. The coils should be replaced if found to be faulty.

CAMSHAFT POSITION (CMP) SENSOR

The camshaft position sensor monitors the position of the camshaft. It is mounted at the cylinder head.

CRANKSHAFT POSITION (CKP) SENSOR

It is mounted on the front of the transmission case. It senses a ring on the flywheel for crankshaft position.

HIGH-TENSION LEADS

The high-tension leads connect the ignition coils to spark plugs.

SPARK PLUGS

The spark plugs provide the air gap necessary to produce an arc from energy coming from the ignition coil. This arc ignites the fuel/air mixture in the engine cylinders, producing power.

Scheme 25

1. Apply parking brake.
2. Warm up engine to normal operating temperature.
3. Turn OFF all electrical loads.
4. Connect timing light to number one spark plug wire. NOTE: A rubber inspection plug has been provided in the plastic coil cover (center of the cylinder head cover) directly over the number one (1) spark plug wire. Remove the inspection plug and connect the inductive pick-up of your tachometer or timing light to the number one (1) spark plug wire. If your tachometer/timing light inductive pick-up is too large, the coil cover will have to be removed.
5. Verify that ignition timing marks on crankshaft pulley and timing mark on timing belt cover are aligned. Ignition timing: BTDC 5° +/- 10° (at idle speed) NOTE: Ignition timing is not adjustable.
6. If timing is not within the specified range, replace the ECM.

Scheme 26

1. Apply parking brake.
2. Warm up the engine to normal operating temperature.
3. Turn OFF all electrical loads.
4. Connect inductive tachometer to number one (1) spark plug wire or connect tachometer pickup lead to terminal number three (3) in the data link connector (DLC). NOTE: The base idle speed is not adjustable. The idle speed is automatically controlled by the engine control module. Incorrect idle speed indicates a potential problem with the IAC system or an intake manifold leak.
5. Check that idle speed is within specified range. Idle speed (transaxle in "NEUTRAL"): 800 +/- 50 RPM NOTE: This is a "wasted spark" ignition system, some tachometers will indicate twice the actual engine speed.
6. Disconnect tachometer from DLC or spark plug wire.
7. Turn off engine.