Camshaft Position Sensor: Service and Repair

COMPONENTS

REMOVAL OF CAM POSITION SENSOR

1. DISCONNECT CABLE FROM NEGATIVE TERMINAL OF BATTERY

2. DISCONNECT CAM POSITION SENSOR CONNECTOR





3. SET NO.1 CYLINDER TO TDC COMPRESSION

(a) Remove the oil filler cap.

(b) Look through oil filler hole and turn the crankshaft clockwise until the cam nose can be seen.





(c) Turn the crankshaft counterclockwise approximately 120°.

(d) Turn the crankshaft again approximately 100 to 400 clockwise so that the timing belt cover TOC mark and the crankshaft pulley TDC mark are aligned.





4. REMOVE NO.4 AIR CLEANER PIPE WITH NO.1 AND NO.2 AIR CLEANER HOSES





5. REMOVE NO.7 AIR CLEANER HOSE WITH AIR FLOW METER AND AIR CLEANER CAP

(a) Disconnect the three air hoses and PCV hose.

(b) Disconnect the air flow meter connector.

(c) Disconnect the PS idle up air hose.





(d) Loosen the clamps and remove the bolt.

(e) Remove the No.7 air cleaner hose with air flow meter and air cleaner cap.





6. REMOVE PS RESERVOIR TANK

Remove the two bolts, nut and reservoir tank with bracket.





7. REMOVE CAM POSITION SENSOR

(a) Remove the hold-down bolt.

(b) Pull out the cam position sensor from the cylinder head.

8. REMOVE 0-RING


REPLACEMENT OF CAM POSITION SENSOR DRIVEN GEAR





1. GRIND DRIVEN GEAR AND PIN

(a) Align the drilled mark on the driven gear with the groove of the housing.

(b) Place a matchmark on the cam position sensor shaft that aligns with the groove of the housing.





(c) Using a grinding wheel, grind the gear and pin.

CAUTION: Be careful not to damage the shaft.





2. REMOVE PIN AND DRIVE GEAR

(a) Using a punch and hammer, drive out the pin.

(b) Remove the driven gear and discard it.





3. INSTALL NEW DRIVEN GEAR AND PIN

(a) Align the matchmark with the groove of the housing.

(b) Align the drilled mark on the new driven gear with the groove of the housing.





(c) Using a punch and hammer, peen both ends of the pin.

INSTALLATION OF CAM POSITION SENSOR

1. CHECK NO.1 CYLINDER TO TDC COMPRESSION

2. INSTALL CAM POSITION SENSOR

(a) Install a new 0-ring to the cam position sensor.

NOTE: Always use a new 0-ring when installing the cam position sensor.





(b) Align the drilled mark on the driven gear with the groove of the housing.

(c) Insert the cam position sensor, aligning the center of the flange with that of the bolt hole on the cylinder head.

(d) Lightly tighten the hold-down bolt.





3. INSTALL PS RESERVOIR TANK

Install the PS reservoir tank with bracket with the two bolts and nut.





4. INSTALL NO.7 AIR CLEANER HOSE WITH AIR FLOW METER AND AIR CLEANER CAP

(a) Install the No.7 air cleaner hose with air flow meter and air cleaner cap.

(b) Install the bolt and tighten the clamps.





(c) Connect the PS idle up air hose.

(d) Connect the air flow meter connector.

(e) Connect the PCV hose and three air hoses.





5. INSTALL NO.4 AIR CLEANER PIPE WITH NO.1 AND NO.2 AIR CLEANER HOSES

6. CONNECT CAM POSITION SENSOR CONNECTOR

7. WARM UP ENGINE

Allow the engine to reach normal operating temperature.

8. ADJUST IGNITION TIMING Ignition Timing