Ignition System (2ZZ-GE): Inspection

1. Clean the spark plug.

   Air pressure: Below 588 kPa (6.0 kg/cm ²  , 85 psi) 

   Duration: 20 seconds or less 

   Fig 1: Cleaning Spark Plug

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check the spark plug for any damage on its thread and insulator.

   HINT:

   If damaged, replace the spark plug.

   Recommended spark plug: 

   SK20R11 (DENSO made) 

   IFR6A11 (NGK made) 

   Fig 2: Checking Spark Plug For Any Damage On Its Thread And Insulator

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Check the spark plug electrode gap.

   Electrode gap: 1.0 to 1.3 mm (0.039 to 0.051 in.) 

   Fig 3: Checking Spark Plug Electrode Gap

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   RESISTANCE: 

   835 to 1400 Ω at cold 

   1060 to 1645 Ω at hot 

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

   HINT:

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

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

   RESISTANCE: 

   1630 to 2740 Ω at cold 

   2065 to 3225 Ω at hot 

   HINT:

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

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

Fig 4: Inspecting Ignition Relay No 1

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Standard: 

If the resistance is not a specified, replace the ignition relay.