Ignition System (1NZ-FXE): Inspection

1. Clean the spark plug.
   1. Using a spark plug cleaner, clean the spark plug.
   AIR PRESSURE DURATION
   
   

   Air Pressure	Duration
   588 kPa (6.0 kgf/cm2,85 psi )	20 second or shorter

   HINT:

   • If the electrode is wet, dry it first, then clean it with a spark plug cleaner.
   • If the spark plug is wet with oil, remove the oil with gasoline before using a spark plug cleaner.
   Fig 1: Cleaning Spark Plug

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check the appearance.
   1. Check that the threads or insulator of the spark plug are not damaged.

   Recommendes spark plug: 

   SPARK PLUG REFERENCE
   
   

   Supplier	Type
   DENSO	SK16R11
   NGK	IFR5A11

   Fig 2: Inspecting Spark Plug

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3. Inspect the gap.
   1. Using a spark plug gap gauge, measure the gap of the spark plug.
   1. Standard: 1.0 to 1.1 mm (0.039 to 0.043 in.) 
   1. Maximum: 1.2 mm (0.047 in.) 

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

   Fig 3: Measuring Spark Plug Gap

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

   Standard: 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Specified Condition
   1 (G+) - 2 (G-)	1,630 to 2,740 Ω(Hot)
   1 (G+) - 2 (G-)	2,065 to 3,225 Ω(Cold)

   NOTE: "Cold" and "Hot" mean the temperature of the parts themselves. "Cold" is from -10 to 50°C (from 14 to 122°F) and "Hot" is from 50 to 100°C (from 122 to 212°F).

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

   Fig 4: Measuring Camshaft Position Sensor Connector Terminals Resistance

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Standard: 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Specified Condition
   1 (NE+) - 2 (NE-)	985 to 1,600Ω(Cold)
   1 (NE+) - 2 (NE-)	1,265 to 1,890 Ω (Hot)

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

Fig 5: Measuring Crankshaft Position Sensor Connector Terminals Resistance

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002