Fault code P0010 – a step-by-step guide to diagnosing and fixing it

P0010 indicates that there is a problem with the intake camshaft actuator which alters the timing of the valves based on the engine speed and certain factors. It does so by regulating the oil pressure. The DTC is triggered when an electrical fault (e.g. a low voltage) is detected in the actuator circuit or variable valve timing (VVT) system. The engine control module monitors this circuit continuously.

• Buildups of oil sludge, causing blockages in the oil passages. If the oil is not changed on time, contaminants will gradually accumulate in the engine.
• Worn valve train components due to insufficient lubrication or mechanical wear. It is important to pay attention to the proper maintenance intervals.
• A malfunctioning camshaft or crankshaft position sensor, affecting the timing mechanism.
• An open or short circuit resulting from wire or connector damage. The actuator may not respond properly if the wires are fraying, melting or corroding.

• Activation of the check engine light
• An increase in fuel consumption
• Poor engine performance at high RPMs
• A rough idle
• Knocking from the engine

• Using an OBD2 scanner, scan the onboard computer and check the diagnostic trouble codes and freeze frame data. This will help you to pinpoint the cause of the error. For example, you might see the DTC P0340, which indicates that there’s a problem with the camshaft position sensor circuit.
• Check the condition of the motor oil for your car and make sure that the lubrication system is well maintained. If you check it using the dipstick and it looks too dark or sludgy, this could be the cause. In this case, you will need to flush the system to get rid of the sludge, and change the engine oil and car oil filter. Once you have done this, reset the code and scan again to see whether the error reappears.
• Carefully examine the wires and connectors in the VVT system. Replace any damaged components and clean the connector with a specialised cleaning agent to remove any traces of corrosion.
• Inspect the valve train components and the timing belt or chain. Replace parts that are showing signs of wear or damage, and make sure that the timing belt/chain tension is correct.
• You can test whether the position sensors are functioning properly using a digital multimeter. If the wires or devices are faulty, install new ones.