1995-2004 Nissan Pathfinder Xterra Frontier Quest Mercury Villager Infiniti QX4 3.3L New Camshaft Position Sensor

Fit In Five Steps

How to replace a Nissan Pathfinder Camshaft Position Sensor?

1.Locating the Camshaft Position Sensor

Before you can actually install a camshaft position sensor, you first need to know where to find it. Fortunately, the camshaft position sensor can easily be located. Generally, the sensor is located directly or near the area of the crankshaft. It is often situated near the top of the engine casing. The casing should be near the intake or exhaust camshaft. Since the camshaft position sensor is easily accessible without having to remove other parts of the engine, installing one will not be that difficult.

2.Removing the Bolts & Plugs

Once you have located the camshaft position sensor, you can now start to remove it. The sensor has small bolts that hold it in place. The sensor is also connected to the fuel injection system via a plug that has 2 wires. With the socket or adjustable wrench, remove the bolts that hold the camshaft position sensor in place. Make sure that you do not misplace these bolts since you would need it to bolt the new one. After removing the bolts, remove the plugs that connect it the fuel injection system. You can now remove the sensor from the casing.

3.Testing the Camshaft Position Sensor & Locating the Cylinder Head

Before you install the camshaft position sensor, make sure it works properly. To check, connect the sensor to a multimeter and set it to the diode test function or a low resistance setting. You then need to pass a magnet in front of the sensor. Make sure you do this several times to be sure. The reading should make significant changes to determine that the sensor is working properly. Once tested, you can now start installing the sensor. Locate the cylinder head. This is where you will install the camshaft position sensor.

4.Installing the “O” Ring & Camshaft Position Sensor

You then need to place a new “O” ring on the camshaft position sensor. It is important that you lightly coat the ring with engine oil. Once you have oiled it, place it on the cylinder head and tighten the bolts. You can now attach the sensor to the electrical connector. The connector should lock in place when you plug it in. To remove it, just press the release tab.

5.Re-install the Bolts

After placing the sensor, connect it to the fuel injection system again. Bolt the camshaft position sensor and then put the engine casing back.