General description Show Appearance Fig. 1 Used types of sensors
The induction phase sensor may be located inside the distributor or on the camshaft. Therefore near the camshaft a
device with permanent magnet is mounted. Every time the magnet passes through the sensor, its magnetic field is changed and the resulting pulse is sent to the onboard controller for processing. Synchronization of operation of the camshaft position sensor and the crankshaft position sensor It is very important how the signals are set by phase, between
the CMP sensor and the CKP sensor for injection system vehicles. If the phases are not synchronized, engine and the onboard controller may enter an emergency operational mode with reduced power and increased concentration of pollutants in the exhaust gases. In the worst case the engine will not start at all.
— Procedure to verify functionality of the inductive CMP sensor. Measurement with voltmeter and ohmmeter of inductive sensor —
NOTE: Better results usually are obtained by measuring the terminal "+" although the signal can be measured in the grounding circuit.
— Oscilloscope measurements of the inductive sensor — Fig. 2 Procedure to check the reliability of CMP sensor with Hall Effect NOTE: The description below relates to a sensor located in the distributor. Sensor verification located on the camshaft is done similarly. — Voltmeter measurements of Hall sensor — — Oscilloscope measurements with Hall sensor — Fig. 3 — Possible damages in Hall sensor —
-- Lack of signal voltage
Procedure to check reliability of CMP with AC output — Oscilloscope measurements of the AC output sensor — Fig. 4 Move the active end of the oscilloscope probe to the other terminal. You will observe the same signal as in Fig. 4. How do I know if my camshaft sensor is good?What Are the Symptoms of a Bad or Failing Camshaft Position Sensor?. Check Engine Light Comes On. The most common indicator that the camshaft position sensor is failing is a lit Check Engine light. ... . Poor Drivability. ... . Transmission Shifting Problems. ... . Bad Fuel Economy.. What are the signs of a failing cam sensor?If your vehicle idles roughly, stalls frequently, has a drop in engine power, stumbles frequently, has reduced gas mileage, or accelerates slowly, these are all signs your camshaft position sensor could be failing.
How do you reset a camshaft position sensor?How to reset the camshaft position sensor? Evidently, you cannot reset a camshaft position sensor. Therefore, you will need to replace the component if your camshaft malfunctions (check engine light on, acceleration issues, sputtering and stalling, etc.).
|