Revotron 1.2T 149 Component Specification : Cam Shaft sensor measures the speed of the CAM shaft. The cam phase sensor is mounted on cylinder head cover, with a gap of 1.5± 0.5mm between cylinder head cover surface and sensor tip. The sensor provides input signal to ECU to determine the phase, i.e. the sensor provides signal voltage when the target wheel passes through the sensor. The position of target wheel indicates the engine phase. Cam shaft sensor contains a permanent magnet and a Hall IC. Due to the rotation of a ferromagnetic target wheel in front of Sensor, the magnetic field is modulated at the place of the hall probe. With a tooth in front of the sensor, the magnetic field increases, with a slot it decreases. This modulation results in changes of the output signal. The magnetic field is evaluated by the hall probe in the ASIC. Sensor Stand alone Diagnosis : Connector details 1. Ground 2. ECU pin M1F3 : (signal to ECU) 3. 12V supply (through ECU power supply) with ignition key is 'ON' position, use multimeter to measure the supply voltage across pin1 and pin3, which should be 12V DC. Measure the signal voltage across pin1 and pin2. iv. Knock Sensor : Component Details : Knock Sensor consists of a piezoelectric element. Piezoelectric elements generate voltage when vibration or pressure is applied to them. The Piezoelectric element in the knock sensor is tuned to the Engine Knock Frequency. Component Location : The knock sensor is mounted on the cylinder block. Preliminary Checks : 1. Faulty Knock Sensor 2. Check for P0327-11, P0328-12 - Improper Wiring Harness Connections between Knock Sensor and EMS ECU.
RkJQdWJsaXNoZXIy MTIwNTUz