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DTC P0014 is a generic powertrain code defined as “Exhaust Camshaft Timing – Over-Advanced Bank 1.”
Code P0014 indicates that the car’s Engine Control Module (ECU) senses problems with the camshaft timing — specifically the exhaust camshaft in Bank 1, position B. The exhaust camshaft position B is responsible for controlling the valves which release engine carbon emissions.
Code P0014 is only applicable to vehicles with a Variable Valve Timing system. Variable Valve Timing is responsible for improving engine performance and fuel efficiency, allowing your engine to gain more horsepower and speed. It does this by regulating the opening/closing of the exhaust valve and intake valve, controlling the combustion of the fuel-air mixture.
The VVT system consists of the camshafts, camshaft actuator or cam phaser, solenoid valve, the Engine Control Module, and the oil line.
OBD II code P0014 can potentially manifest itself in various ways, more commonly through the engine light and oil level light.
Here’s a list of possible symptoms for engine code P0014:
Sometimes, the camshaft sensor may also send a warning message to the ECU, turning the check engine light on.
Fault code P0014 is pretty severe. The engine may run erratically in the worst-case scenario, and your car may face a stopping problem.
A camshaft is a metallic rail that sits above the cylinders, at the top of the engine. It’s marked by egg-shaped projections known as cam lobes that align with the valves. As the camshaft rotates, the peaked end of the cam lobes contacts a lever called ‘rocker arm,’ opening the engine valve. Once the lobe’s peak moves past the rocker arm, the lever moves back to its original position, closing the valve. This movement is perfectly synchronized to the movement of the crankshaft with the help of the timing chain.
Prolonged driving with an out-of-time camshaft may also bring the valves in contact with the piston, causing a bent valve stem. So, to avoid costly repairs and retain driving safety, you should contact a mechanic as soon as you detect code P0014 in your engine.
There are many likely triggers for trouble code P0014.
Some of these include:
In most cases, engine code P0014 requires an oil change and oil level diagnosis. However, if that doesn’t resolve the code, you’ll need to perform an intermediate-level exhaust camshaft diagnosis.
Note: This can be a time-intensive process for inexperienced drivers and may require specialized equipment. So it’s best to let your mechanic handle the diagnosis and repair.
That being said, here’s how your mechanic will usually diagnose code P0014:
Engine code P0014 can be caused by several issues, including low oil levels, problems with the camshaft variable timing solenoid or camshaft phaser, etc.
Depending on the diagnosis, you may need to correct or replace:
A timing chain or timing belt synchronizes the rotation of the crankshaft and camshaft, ensuring the engine’s valves open and close properly during each cylinder’s firing. It sometimes also powers the water pump, oil pump, and injection pump and helps maintain the camshaft and crankshaft position.
A camshaft phaser (also known as camshaft actuators) is located at the heart of the Variable Valve Timing system. The camshaft phaser is responsible for altering and adjusting the position of the camshafts to adjust the engine’s valve timing. This is done by an oil control solenoid valve (VVT solenoid) that applies oil pressure to activate the phaser. The PCM then controls the VVT solenoid based on input from various sensors.
The fault codes should then be reset, and a road test performed to see if the codes persist.
The cost of Bank 1 Exhaust Camshaft resolution can vary depending on the repairs you implement.
That being said, here’s a general estimate of various variable valve timing system repairs (excluding diagnosis costs):
1-Year | 12,000-Mile Warranty