Camshaft position sensor (camshaft sensor)
Function:
* Monitors the position of the camshaft and synchronizes it with the crankshaft.
* Provides a signal to the electronic engine control unit (ECU), which uses this data to control the ignition, fuel injection and exhaust gas recirculation (EGR) control valves.
Location:
* Usually installed on the engine cylinder head.
*Can be located on the intake or exhaust camshaft.
Types of camshaft sensors:
* Resistance sensor: Changes resistance depending on the position of the camshaft.
* Inductive Sensor: Generates an electrical impulse when a metal tooth on the camshaft passes by it.
* Hall effect sensor: Uses a magnetic field and semiconductor material untuk mendeteksi pergerakan gigi distribusi.
Automatic transmission:
In vehicles with automatic transmission, the camshaft sensor plays a particularly important role because it provides:
* Proper gear shifting: The camshaft sensor transmits a signal to the ECU, which uses it to determine the optimal gear shift point.
* Prevent engine lock-up: The camshaft sensor helps prevent engine lock-up by sending a signal to the ECU, which cuts the ignition if the camshaft is out of sync with the crankshaft.
Camshaft sensor malfunctions:
A faulty camshaft sensor can result in the following symptoms:
* Difficulty starting or stopping the engine
* Rough engine operation
* Deterioration in fuel consumption
*Malfunction indicator light (MIL) illuminated