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Ignition Coil Resistance Inspection
Primary Coil
Place Ohm meter leads between the harness connection
lead and the exposed metal coil leg.
A - Primary Coil Resistance
Secondary Coil
Place Ohm meter leads between exposed metal coil leg
and the spark plug terminal connection.
B - Secondary Coil Resistance
Spark Testing
- Fuel is Extremely Flammable - Use Extreme Caution When Servicing the Fuel System
- High Voltage Ignition Systems can be Dangerous - Use Caution when Servicing Ignition Systems
1. Remove spark plug boot from the spark plug.
2. Remove the spark plug from the engine.
3. Connect the negative (-) electrode of the spark plug (threaded area) to ground (cylinder head cover).
4. Crank the engine and view the electrode gap. Spark should be present when engine is turning over.
5. Reinstall the spark plug and torque to specification - 22 ft-lbs (30 Nm).
6.
Properly install the spark plug boot.
1.0-1.6 Ω
15 KΩ +/- 15%
31
A
B
Image for Reference Only
4
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