P0016 - Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor A
P0016 is a generic powertrain diagnostic trouble code indicating Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor A. It relates to the Fuel & Air Metering and Auxiliary Emission Controls system.
DTC Breakdown (SAE J2012)
| System | Powertrain (P) |
| Type | Generic |
| Subsystem | Fuel & Air Metering and Auxiliary Emission Controls |
| Fault Index | 16 |
| Standard | SAE J2012 / ISO 15031-6 |
What does diagnostic code P0016 mean?
The crankshaft position and camshaft position signals are out of correlation on Bank 1, indicating the mechanical timing of the engine is out of synchronization.
Severity Level & Driveability Details
Severity: High
A stretched timing chain or timing belt that has jumped teeth can cause severe engine damage on interference engines.
Common Symptoms of P0016
- Rattling noise from engine cover.
- Hard starting.
- Lack of power.
- Engine misfires.
- The check engine light will turn on due to camshaft-crankshaft position mismatch.
Typical Causes for P0016
- Stretched timing chain or timing belt.
- Failed timing chain tensioner or guides.
- Timing belt jumped teeth.
- Failed VVT cam phaser.
Diagnostic and Troubleshooting Steps
Use an oscilloscope to compare the crank and cam sensor signals. Inspect timing chain alignment marks. Check oil level.
Typical Repairs and Fixes
- Replacing the timing chain/belt, tensioners, and guides.
- Replacing the VVT phaser.
- Changing engine oil.
Sensor Location & Parts Involved
The VVT solenoid is mounted on the cylinder head near the camshaft gear, while the cam phaser is on the end of the camshaft itself.
Clearing Code & Recurrence
Reset codes with a scan tool and perform a road test to verify VVT solenoid operation.
Emissions & Smog Inspection Impact
Incorrect valve timing leads to incomplete combustion and elevated tailpipe emissions.
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Related Diagnostic Codes
Sources & References
This diagnostic guide is compiled and verified against the following authority sources:
- NHTSA TSB Bulletins
- EPA OBD regulations
Frequently Asked Questions about P0016
What does the Bank 1 camshaft crankshaft timing correlation code P0016 mean?
The engine control module logged P0016 after detecting that the camshaft position sensor for Bank 1 Sensor A is out of alignment with the crankshaft position sensor signal.
Is it safe to drive with the Bank 1 camshaft crankshaft timing correlation code P0016 active?
No, VVT timing faults can damage internal engine parts if left unresolved.
How much does it cost to repair a Bank 1 camshaft crankshaft timing correlation code P0016 fault?
An oil change is $50-$80. Solenoid replacement runs $150-$350. Replacing the timing chain is a major mechanical job costing $1,200-$2,500.
What are the common causes of the Bank 1 camshaft crankshaft timing correlation code P0016?
Trigger conditions for the Bank 1 camshaft crankshaft timing correlation code P0016 include: Stretched timing chain or timing belt that has jumped teeth., Worn timing chain guides, tensioners, or gears., Failed camshaft position sensor or crankshaft position sensor..
Can I clear the check engine light for Bank 1 camshaft crankshaft timing correlation code P0016?
Reset codes with a scan tool and perform a road test to verify VVT solenoid operation.
Will the Bank 1 camshaft crankshaft timing correlation code P0016 cause an inspection failure?
Incorrect valve timing leads to incomplete combustion and elevated tailpipe emissions.