Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSSUBARU1998LEGACY BRIGHTON WAGON AWD F4-2.2L SOHCREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTIGNITION SYSTEMCAMSHAFT POSITION SENSORDESCRIPTION AND OPERATION
1998 Subaru Legacy Brighton Wagon AWD F4-2.2L SOHC
Camshaft Position Sensor: Description and Operation
1998 Subaru Legacy Brighton Wagon AWD F4-2.2L SOHCSECTION Description and Operation
PURPOSE/OPERATION
The camshaft position sensor is located on the left-hand camshaft support to detect the combustion cylinder at any one moment.
It is designed so that the Engine Control Module (ECM) accurately reads the number of pulses which occur when protrusions provided on the back of the left hand camshaft-drive sprocket cross the sensor. Internal construction and the basic operating principle of the camshaft position sensor are similar to those of the crankshaft position sensor. A total of seven protrusions (one each at two locations, two at one location and three at one location) are arranged in four equal parts of the sprocket, as shown.
The camshaft position sensor is located on the left-hand camshaft support to detect the combustion cylinder at any one moment.
It is designed so that the Engine Control Module (ECM) accurately reads the number of pulses which occur when protrusions provided on the back of the left hand camshaft-drive sprocket cross the sensor. Internal construction and the basic operating principle of the camshaft position sensor are similar to those of the crankshaft position sensor. A total of seven protrusions (one each at two locations, two at one location and three at one location) are arranged in four equal parts of the sprocket, as shown.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.