What does the P0014 fault code mean?
The P0014 fault code, applicable to all car manufacturers, means “B Camshaft Position – Timing Over-Advanced or System Performance (Bank 1)“.
Background Information: The camshaft controls the opening and closing of the valves. In a variable valve timing system, the electronic camshaft adjusting valve (or oil control valve, OCV) adjusts the camshaft angle by changing the oil pressure to the camshaft adjuster (mechanical) according to instructions from the engine control module (ECM), ensuring the valves open and close at the optimal time. Causes of the P0014 fault include incorrect timing of the B intake/left/front camshaft, mechanical jamming of the camshaft due to over-advancing, or the actuator valve being stuck in the open position. In short, it’s either timing too early or system performance issues. The “B” camshaft must be the “exhaust,” “right,” or “rear” camshaft. Determine left/right and front/rear from the driver’s position with a forward view. The first group refers to the group including cylinder 1, and the second group is the group opposite the first group.
P0014 Error Code Symptoms
- Uneven engine idling
- Engine stalling
- Difficulty starting the engine
- Increased fuel consumption
- Increased emissions
- “Check Engine” light illuminated
Main Causes of P0014 Error Code
- Faulty VVT phase control solenoid valve
- Contaminated or low-quality engine oil
- Camshaft mechanical problems
- Worn timing chain or belt
- Camshaft position sensor issues
P0014 Error Code in Different Vehicles
Chevrolet Cruze P0014: The most common cause is due to oil contamination or a faulty VVT solenoid valve. Regular oil changes help prevent this problem.
BMW 3 Series P0014: The error may be related to the camshaft position sensor. It’s also worth checking the timing chain tension.
Toyota Camry P0014: In models with the VVT-i system, the problem may be caused by a clogged oil passage or a worn solenoid valve.
Hyundai Sonata P0014: The error usually stems from low-quality engine oil or infrequent oil changes. It is recommended to only use the manufacturer’s recommended oil.
GMC Terrain P0014: This is usually caused by a faulty phase shift solenoid valve. Replacing it usually solves the problem.
How to Diagnose P0014 Error Code?
Step 1: Read the error code using an OBD car fault code reader
Step 2: Check the engine oil level and condition
Step 3: Check and test the VVT solenoid valve
Step 4: Check the timing chain/belt for wear and tension
Step 5: Diagnose the shaft position sensors (camshaft, crankshaft)
| Possible Causes | How to Check？ |
|---|---|
| Faulty VVT solenoid valve | Check resistance, apply voltage for testing |
| Oil sump contamination | Check engine oil condition, replace if necessary |
| Timing chain/belt wear | Visual inspection, check timing marks |
| Camshaft position sensor issue | Diagnose with a scanner, check signal with an oscilloscope |
Tools needed: OBD2 scanner, multimeter, oscilloscope (if possible), hand tool set, new VVT solenoid valve (if needed)
How to fix P0014 error code? (Solutions to the problem)
Simple solutions
- Engine oil and oil filter replacement
- Clean or replace the VVT solenoid valve
- Reset the error code after addressing the cause
In-depth diagnostic and repair solutions
- Check the condition of the timing chain/belt, replace if necessary
- Replace the camshaft position sensor
- Check the ECU for errors and proper operation
- Flush the VVT system oil passages
Troubleshooting by symptoms
| Symptom | Possible solution |
|---|---|
| Engine misfire | Clean or replace the VVT solenoid valve |
| High fuel consumption | Check and replace engine oil and sensors |
| The Check Engine light came on | Scan and resolve code errors |
| Difficulty starting the engine | Check timing phase and chain/belt condition |
P0014 Error FAQ
Can you drive with a P0014 error?
No, driving for extended periods with this error can lead to improper valve timing and engine damage.
Can a P0014 error be caused by old or dirty engine oil?
Yes, dirty or old engine oil can interfere with the VVT system, leading to a P0014 error.
How can I quickly fix a P0014 error?
First, it’s worthwhile to change the engine oil and filter. It’s also recommended to check and clean the VVT solenoid valve. If the error persists, a more in-depth diagnosis is needed.
Is a P0014 error harmful to the engine?
Yes, ignoring the error can lead to valve timing failure, increasing the risk of damage to valves and pistons.
Can I remove the P0014 code with a scanner?
Yes, the code can be deleted with an OBD2 scanner, but the code will reappear if the root cause of the malfunction is not eliminated.
Related OBD2 Errors
P0010 – A Camshaft Position Actuator Circuit/Open (Bank 1))
P0011 – A Camshaft Position – Timing Over-Advanced or System Performance (Bank 1)
P0024 – B Camshaft Position – Timing Over-Advanced or System Performance (Bank 2)
Important! Ignoring the P0014 code can cause serious damage to the engine, including valve or piston failure due to damaged valve timing. If error P0014 occurs, do not delay diagnosis. Often, simply changing the engine oil or replacing the solenoid valve will resolve the issue. Regular engine maintenance helps prevent such errors from occurring again in the future.