SFI SYSTEM DETAILS CRANKSHAFT POSITION SENSOR AND CAMSHAFT POSITION SENSOR

  1. CONSTRUCTION

    1. Magnetic Resistance Element (MRE) type*1 or pickup coil type*2 crank position sensor are used. The timing rotor of the crankshaft has 34 teeth, with 2 teeth missing. The crank position sensor outputs a crankshaft rotation signal every 10°, and the change in the signal due to the missing teeth is used to determine top-dead-center.

      *1: Models with stop and start system

      *2: Models without stop and start system

    2. A pickup coil type camshaft position sensor is used. To detect the camshaft position, a timing rotor on the intake camshaft is used to generate 3 pulses for every 2 revolutions of the crankshaft.