![]() ![]() If the difference between the target and actual intake valve timing is large, and changes in the actual intake valve timing are small, the ECM interprets this as a VVT controller stuck malfunction and stores a Diagnostic Trouble Code (DTC). The VVT controller can advance or retard the intake camshaft. ![]() This control signal regulates the oil pressure supplied to the VVT controller. ![]() The ECM sends a target duty-cycle control signal to the camshaft timing oil control valve assembly. The VVT system includes the ECM, the camshaft timing oil control valve assembly and the VVT controller (camshaft timing gear assembly). The ECM optimizes the intake valve timing using the Variable Valve Timing (VVT) system to control the intake camshaft. The ECM changes the energizing time to the solenoid (duty-cycle) in accordance with the camshaft position, crankshaft position, throttle position, etc. The valve moves when the Engine Control Module (ECM) applies 12 V to the solenoid. The camshaft timing oil control valve assembly is a solenoid valve and switches the engine oil line. The engine oil pressure turns the VVT controller to adjust the valve timing. The Bank 2 in this definition refers to the part of the engine that does not contain the cylinder 1. Together, the information from these two sensors shows when a piston is at the top center for a. They work closely with crankshaft position sensors to paint a more complete picture for the ECU. The Variable Valve Timing (VVT) system adjusts the intake valve timing to improve driveability. Diagnostic trouble code (DTC) P0024 stands for Exhaust B Camshaft Position-Timing Over-Advanced (Bank 2). Camshaft position sensors monitor the camshaft’s position and send information to the ECU about when each valve is open on a particular cylinder. ![]()
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