4890190 SENSOR

IVECO CAMSHAFT SENSOR

What does the camshaft sensor do?

This sensor detects the position and speed of the camshaft and sends this information to the Engine Control Unit (ECU). The ECU uses this data to:

• Synchronize the ignition (diesel injection) with the exact phase of the engine cycle.

• Coordinate with the crankshaft sensor, especially during starting and to detect top dead center (TDC).

• Control the common rail injection system (crucial in modern IVECO vehicles).

• Optimize engine efficiency and reduce emissions.

Sensor location on IVECO

It is generally located:

• On the cylinder head, near the camshaft, usually at one of the ends.

• On IVECO Cursor and F1C engines, it is aligned with a tooth or lobe on the camshaft, which acts as a reference.

How does it work?

1. The camshaft has a toothed wheel or "target" with a reference point.

2. As it rotates, the sensor (a Hall or inductive magnetic type) detects the passage of the tooth or mark.

3. It sends a variable electrical signal to the ECU, which interprets the exact position of the camshaft.

4. Together with the crankshaft sensor, the ECU knows when to inject and how much fuel.

Symptoms of a faulty sensor

• Difficulty or inability to start the engine.

• Irregular idling or loss of power.

• Engine warning light (Check Engine) on.

• Intermittent injection faults.

• The engine enters emergency mode (limp mode).

Example: 

Model > EUROCARGO 140E24 TECTOR 

Chassis > 2464756

Sheet > 54-17-00