How does the CKP and CMP sensor work?

The CKP and CMP sensors work together to keep the PCM informed about engine timing. Should the timing be off, the PCM will set a code P0017. This code stands for Crankshaft Position – Camshaft Position Correlation (Bank 1 Sensor B).

How does the crankshaft position sensor ( CKP ) work?

The crankshaft position sensor (CKP) relays crankshaft position and engine RPM to the PCM, or ignition module. This information is used but the PCM to control ignition timing, and in some applications, it is also used to control fuel injection.

How does the Camshaft Position Sensor ( CMP ) work?

The camshaft position sensor (CMP) is used to determine the position of the camshaft (s). It relays this information to the powertrain control module (PCM). The PCM then uses this information to control the fuel injectors, and on some applications, for ignition timing.

What can cause a cam / crank correlation problem?

Variable valve timing (VVT) system components can cause cam/crank correlation problems as well. These systems are often dependent on oil pressure, so checking the oil level is a good place to start. A plugged or failed oil control valve can also cause VVT problems.

Can a bad CMP cause a bad ECM?

It does one good to note that this typically not a sensor problem, since the ECM can only use good sensor readings to determine whether or not the engine is in time. In other words, if a CMP is bad, it cannot check for good timing between that CMP and the CKP.

What is the CKP sensor on a p0016 Chevy?

P0016 CHEVROLET | Crankshaft Position – Camshaft Position Correlation Bank 1 Sensor ‘A’ | The Crankshaft Position (CKP) sensor is a permanent magnet generator, known as a variable reluctance sensor. The magnetic field of the sensor is altered