1. The crankshaft sensor on a Vauxhall Vectra C is located on the front of the engine, near the bottom of the engine block.
2. It is usually attached to the engine block with two bolts.
3. The sensor has a wire harness that connects it to the engine control unit (ECU).
Here is a more detailed guide to the specific location of the crankshaft sensor:
1. Open the hood of the car.
2. Locate the engine block. It is the large metal block in the front of the engine bay.
3. Look for a small, cylindrical sensor near the bottom of the engine block. This is the crankshaft sensor.
4. The crankshaft sensor is usually black or gray in color. It has a wire harness that connects it to the ECU.
If you are having trouble locating the crankshaft sensor, you can refer to the vehicle's repair manual for more detailed information.