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SFI System (1GR-FE): Inspection

INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSY
1. Resistance inspection.
  1. Using an ohmmeter, measure the resistance between the terminals.
    Resistance: 6.9 - 7.9 Ω at 20°C (68°F)
2. Movement inspection.
  1. Connect the positive (+) lead from the battery to terminal 1 and negative (-) lead to terminal 2, and check the movement of the valve.
    
    Fig 1: Connecting Positive Lead From Battery To Terminal 1 & Negative Lead To Terminal
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    NOTE: Confirm the valve does not adhere.
    
    HINT:
    
    Bad returning of the valve by catching foreign objects causes subtle pressure leak to the advanced direction. DTC could be detected.
INSPECT MASS AIR FLOW METER
1. Output voltage inspection.
  1. Apply battery voltage across terminals 1 (+B) and 2 (E2G).
  2. Connect the positive (+) tester prove to terminal 3 (VG), and negative (-) tester prove to terminal 2 (E2G).
  3. Blow air into the MAF meter, and check if the voltage fluctuates.
2. Resistance inspection.
  1. Using an ohmmeter, measure resistance between the terminals 4 (THA) and 5 (E2).
    
    Fig 2: Measuring Resistance Between Terminals 4 (THA) & 5 (E2)
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    Resistance:
    
    13.6 - 18.4 kΩ at 20°C (-4°F)
    
    2.21 - 2.69 kΩ at 20°C (68°F)
    
    0.49 - 0.67 kΩ at 60°C (140°F)

INSPECT THROTTLE W/MOTOR BODY ASSY

Using an ohmmeter, measure the resistance between the terminals.

Resistance:

TERMINAL RESISTANCE

Terminal No.	Resistance
2 (M+) <==> 1 (M-)	0.3 - 100 Ω at 20°C (68°F)

Fig 3: Measuring Resistance Between Terminals Using Ohmmeter

G04333401

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT KNOCK SENSOR
1. Using an ohmmeter, measure the resistance between terminals.
  Resistance: 120 - 280 kΩ at 20°C (68°F)
  
  HINT:
  
  If the resistance is not as specified, replace the sensor.
  
  Fig 4: Measuring Resistance Between Terminals Using Ohmmeter
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT ENGINE COOLANT TEMPERATURE SENSOR
1. Resistance inspection.
  1. Using an ohmmeter, measure the resistance between terminals.
    Resistance:
    
    2.32 - 2.59 kΩ at 20°C (68°F)
    
    0.310 - 0.326 kΩ at 80°C (176°F)
    
    NOTE: When inspecting the water temperature sensor in water, prevent water flow into the terminals. After inspection, wipe the water off from the sensor.
    
    Fig 5: Measuring Resistance Between Terminals Using Ohmmeter
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT CIRCUIT OPENING RELAY

Continuity inspection.

Using an ohmmeter, check for continuity between each terminal.

Fig 6: Identifying Relay Test Terminals

G04036614

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Specified condition:

SPECIFIED CONDITION

Between terminals	Specified condition
1 - 2	Continuity
3 - 5	No continuity

Using an ohmmeter, check for continuity between terminals 3 and 5 when the battery voltage is applied across terminals 1 and 2.
Specified condition: Continuity

INSPECT EFI RELAY

Continuity inspection.

Using an ohmmeter, check for continuity between each terminal.

Specified condition:

SPECIFIED CONDITION

Between terminals	Specified condition
1 - 2	Continuity
3 - 5	No continuity

Fig 7: Identifying Relay Test Terminals

G04036614

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Using an ohmmeter, check for continuity between terminals 3 and 5 when the battery voltage is applied across terminals 1 and 2.
Specified condition: Continuity