What does the P0016 fault code mean?
The P0016 fault code, applicable to all car manufacturers, means “Crankshaft Position – Camshaft Position Correlation (Bank 1, Sensor A)“.
Background Information: The crankshaft converts the piston’s up-and-down motion into rotational motion. The camshaft controls the opening and closing of the valves. The Electronic Control Unit (ECU) continuously monitors the timing position of the variable camshaft, checking the relative position between the camshaft and crankshaft. If the relative position is misaligned by more than one gear tooth, this fault code will appear. Possible causes include a faulty camshaft position sensor or its circuitry, a faulty crankshaft position sensor or its circuitry, a faulty engine speed sensor, contaminated engine oil, or a stuck variable camshaft solenoid valve.
Symptoms of P0016 Error Code
- Engine fails to start or starts with difficulty
- Loss of power, poor traction
- Knocking or uneven engine running
- Increased fuel consumption
- Engine malfunction indicator light is on
Main Causes of P0016 Error Code
- Stretched or jumped timing belt/chain
- Damaged crankshaft or camshaft position sensor
- Faulty VVT solenoid
- Oil contamination or low oil level
P0016 Error Code in Different Vehicles
Volkswagen P0016: In models with TSI engines, the error may indicate a stretched timing chain, especially after exceeding 100,000 kilometers.
Chevrolet P0016: In models equipped with Ecotec engines, the problem is usually related to the camshaft position sensor or oil contamination.
BMW P0016: Its peculiarity is that the fault may be accompanied by noise from the phase shifter during engine startup.
Hyundai P0016: The error is usually caused by a malfunction of the CVVT system (similar to VVT), especially with poor oil quality.
Dodge P0016: In Pentastar engines, the error indicates a malfunction of the timing chain or sensor.
How to Diagnose P0016 Error Code?
Step 1: Read the error code using an OBD2 scanner and record the relevant errors
Step 2: Check the engine oil level and condition
Step 3: Check the timing drive for signs of wear or misalignment
Step 4: Check the crankshaft and camshaft position sensors
Step 5: Check the VVT system and phase control valve
| Possible Causes | How to Check？ |
|---|---|
| Stretched timing chain | Check timing phase markings |
| Sensor malfunction | Diagnose with a multimeter or scanner |
| VVT failure | Check the operation of the VVT valve and its signal |
| Contaminated oil | Visual inspection, oil condition analysis |
Tools Needed: OBD2 car scanner, multimeter, mechanical tools for removing the timing cover, diagnostic software or oscilloscope for sensor analysis
How to Fix P0016 Error Code? (Solutions to the Problem)
Simple Troubleshooting Steps
- Replace engine oil and oil filter
- Reset error after maintenance
- Check and reinstall sensor connector
In-depth Diagnostic and Repair Solutions
- Replace stretched timing chain or worn timing belt
- Replace faulty crankshaft or camshaft sensor
- Clean or replace VVT solenoid valve
- Valve timing correction
| Symptoms | Possible Solutions |
|---|---|
| Engine won’t start | Check timing sensor and phase |
| Internal combustion engine runs erratically | Check VVT and replace engine oil |
| Increased fuel consumption | VVT valve phase correction and cleaning |
P0016 Error FAQ
Can I drive with error code P0016?
No. This error indicates a violation of valve timing, which can lead to serious engine damage and erratic operation.
What happens if you ignore error code P0016?
Ignoring it can lead to timing chain breakage, valve-to-piston collision, and even engine overhaul.
Is it possible to reset error P0016 without fixing it?
It can be reset with a scanner or by disconnecting the battery, but the error will reappear if the cause is not addressed.
Is the P0016 error related to oil quality?
Yes, dirty or old oil can interfere with the VVT system and sensors, causing the shafts to be out of sync.
Related OBD2 Errors
P0017 – Crankshaft Position – Camshaft Position Correlation (Bank 1, Sensor B))
P000A – A Camshaft Position Slow Response (Bank 1)
P0340 – Camshaft Position Sensor A Circuit (Bank 1 or Single Sensor)
Important! Ignoring error P0016 can lead to serious engine damage, including valve and piston failure. Do not delay repairs when error P0016 occurs. The sooner the diagnosis is performed, the lower the risk of serious engine damage and the lower the repair costs.