What Causes the P0016 Intake Camshaft Position to Be Unreasonable?

[LeAutumn]

p0016 intake camshaft position being unreasonable is caused by a malfunction in the CVVT control mechanism. Below are the specific details about the camshaft sensor: 1. Function: The camshaft sensor's role is to transmit the operational status of the cylinders to the ECU (Electronic Control Unit), enabling sequential fuel injection control, ignition timing control, and knock control. If the vehicle exhibits symptoms such as difficulty starting, unstable idling, car shaking, weak acceleration, increased fuel consumption, or a continuously illuminated fault light, it indicates a malfunction in the camshaft sensor. 2. Working Principle: The camshaft position sensor detects the position and angle of the camshaft to determine the compression top dead center position of the first cylinder's piston. During startup, the engine ECU uses signals from the camshaft position sensor and the crankshaft position sensor to identify the position and stroke of each cylinder's piston, controlling the fuel injection sequence and ignition order for precise fuel injection and ignition control.