Toyota Previa 1991-1997 Repair Information

Crankshaft Position Sensor

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OPERATION



The Crankshaft Position Sensor is only on the 2TZ-FZE engines. The sensor (NE signal) consists of a signal plate and pickup coil. The NE signal plate has 34 teeth and is mounted on the crankshaft. The NE signal sensor generates 34 signals for every engine revolution. The ECM detects the standard crankshaft angle based on the G signals, and the actual crankshaft angle and the engine speed by the NE signals.

TESTING



The testing of this sensor is done with the engine hot and cold. Cold is from 14-122°F (-10-50°C), hot is from 122-212°F (50-100°C).

  1. Disconect the crankshaft position sensor wiring.
  2.  
  3. Using an ohmmeter, measure the resistance between terminals.

    Cold-1630-2740 ohms
     
    Hot-2065-3225 ohms
     

  4.  
  5. If the resistance is not as specified, replace the crankshaft position sensor.
  6.  
  7. Reattach the sensor wiring.
  8.  

REMOVAL & INSTALLATION



  1. Remove the No. 2 engine hanger.
  2.  
  3. Disconnect the crankshaft position sensor wiring.
  4.  
  5. Remove the 2 bolts and the crankshaft position sensor.
  6.  

To install:
  1. Place the sensor into position and secure with the screws to 74 inch lbs. (9 Nm).
  2.  
  3. Attach the sensor wiring.
  4.  
  5. Install and secure the No. 2 engine hanger.
  6.  

 
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