This code means the Powertrain Control Module (PCM) is detecting a problem with the variable valve timing (VVT) system on the exhaust camshaft. The actuator solenoid is responsible for adjusting the camshaft's timing to optimize performance and emissions. The malfunction could be due to several things, including:
* Faulty camshaft position actuator solenoid (VVT solenoid): This is the most common cause. The solenoid itself might be failing, sticking, or electrically shorting.
* Wiring harness problem: A damaged, shorted, or open wire in the harness leading to the solenoid.
* Low oil pressure: Insufficient oil pressure can prevent the VVT system from functioning correctly.
* Clogged oil passages: Blockages in the oil passages that supply the VVT system can restrict oil flow.
* Faulty camshaft sensor: Although less likely, a faulty sensor could lead to the PCM misinterpreting the camshaft position and setting the code.
* Worn-out timing components: While less probable, significantly worn-out timing chains or gears could contribute.
Troubleshooting: You should have a mechanic diagnose the exact cause. They'll likely use a scanner to check for other codes, monitor live data, and perform tests to isolate the faulty component. Simply replacing the solenoid without investigation could be a waste of money if the underlying problem lies elsewhere.
