Ignition System (2AZ-FE): Inspection

1. Check the appearance.
   1. Check the spark plug for any damage on its thread and insulator.

   If there is any damage, replace the spark plug.

   Recommended spark plug: 

   RECOMMENDED SPARK PLUG REFERENCE
   
   

   Supplier	Type
   DENSO	SK20R11
   NGK	IFR6A11

   Fig 1: Checking Spark Plug Damage

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2. Check the electrode gap.
   1. Standard: 1.0 to 1.1 mm (0.039 to 0.043 in.) for new spark plug 
   2. Maximum: 1.3 mm (0.051 in.) for used spark plug 

If the result is greater than maximum, replace the spark plug.

Fig 2: Identifying Spark Plug Electrode Gap

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1. Check the resistance.
   1. Using an ohmmeter, measure the resistance between the terminals.

   Standard: 

   CAMSHAFT POSITION SENSOR TERMINALS RESISTANCE SPECIFICATION
   
   

   Tester Connection	Specified Condition
   1 (G+) - 2 (G-)	835 to 1,400 Ω at cold
   1 (G+) - 2 (G-)	1,060 to 1,645 Ω at hot

If the result is not as specified, replace the camshaft position sensor.

Fig 3: Measuring Camshaft Position Sensor Resistance

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1. Check the resistance.
   1. Using an ohmmeter, measure the resistance between the terminals.

   Standard: 

   CRANKSHAFT POSITION SENSOR TERMINALS RESISTANCE SPECIFICATION
   
   

   Tester Connection	Specified Condition
   1 (Ne+) - 2 (Ne-)	985 to 1,600 Ω at cold
   1 (Ne+) - 2 (Ne-)	1,265 to 1,890 Ω at hot

If the result is not as specified, replace the crankshaft position sensor.

Fig 4: Measuring Crankshaft Position Sensor Resistance

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