Subaru LEGACY 2002 Quick Reference Index page 205

E: CAMSHAFT POSITION SENSOR
! The camshaft position sensor is located on the right-hand cylinder head. It detects the combus-
tion cylinder at any given moment.
The sensor generates a pulse when one of the slots on the back of the right-hand camshaft plate
!
passes in front of the sensor. The ECM detects the camshaft position by measuring the pulse.
Three slots are provided on the plate as shown below.
(1)
(1) Slot
(2) Camshaft plate
(3) Detection point
(4) Camshaft one rotation (Crankshaft two rotations)
SENSORS AND SWITCHES
(3)
(2)
FU-25
Fuel Injection (Fuel System)
(4)
B2H3913B