The crankshaft position sensor is located on the front of the engine, just below the distributor. It is a small, cylindrical sensor with a single wire connector.
Here are the detailed steps on how to replace the crankshaft position sensor on a Nissan Sentra 1.8L:
1. Disconnect the negative battery terminal.
2. Locate the crankshaft position sensor. It is located on the front of the engine, just below the distributor.
3. Disconnect the electrical connector from the sensor.
4. Use a 10mm wrench to loosen the bolt that holds the sensor in place.
5. Remove the sensor from the engine.
6. Installation is the reverse of removal. Be sure to tighten the bolt to 10 ft-lbs.
7. Connect the negative battery terminal.
Here are some additional tips for replacing the crankshaft position sensor:
* Make sure that the engine is cool before you begin.
* If the sensor is difficult to remove, you can use a penetrating oil to loosen it up.
* Be careful not to damage the sensor or the wiring when you are removing and installing it.
