What Does P0014 Mean?
The PCM has detected that the Bank 1 exhaust camshaft timing is more advanced than the commanded position. This is the exhaust cam equivalent of P0011. The VVT system is holding the exhaust cam in an over-advanced state, which can cause valve overlap issues, rough idle, and poor combustion efficiency.
Common Causes
30%
Incorrect oil viscosity or low oil level affecting hydraulic control of the exhaust VVT phaser
30%
Sticking or failed Bank 1 exhaust VVT oil control valve
20%
Sludge or debris in the exhaust VVT phaser oil passages
15%
Worn exhaust VVT phaser assembly with internal leakage
5%
Timing chain stretch causing exhaust cam position error
Diagnostic Steps
1
Check engine oil level and verify correct viscosity; look for sludge on the oil cap or dipstick indicating poor maintenance history
2
Monitor Bank 1 exhaust camshaft actual position vs. desired — more than 5 degrees over-advanced at idle confirms the condition
3
Command the Bank 1 exhaust VVT solenoid through its full range using bidirectional controls; measure solenoid resistance (6.9-7.9 ohms typical)
4
Remove and inspect the exhaust VVT oil control valve for varnish buildup or stuck spool; check the screen filter for metallic debris
5
If the oil control valve tests good, suspect internal VVT phaser wear requiring phaser replacement
Estimated Repair Cost
$50 - $900
Parts + labor, varies by vehicle and location
The PCM has detected that the Bank 1 exhaust camshaft timing is more advanced than the commanded position. This is the exhaust cam equivalent of P0011. The VVT system is holding the exhaust cam in an over-advanced state, which can cause valve overlap issues, rough idle, and poor combustion efficienc...
The most common cause of P0014 ("B" Camshaft Position - Timing Over-Advanced or System Performance (Bank 1) - See Trouble Code P0011) is: Incorrect oil viscosity or low oil level affecting hydraulic control of the exhaust VVT phaser
Typical repair costs for P0014 range from $50 to $900, depending on the vehicle, location, and whether you do it yourself or go to a shop.
The vehicle may idle roughly and have reduced power output. Excessive valve overlap from over-advanced exhaust timing can cause increased hydrocarbon emissions. Safe to drive but repair promptly.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P0014 to identify the root cause.
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Quick Info
Category
Powertrain
System
Variable Valve Timing (VVT) System
Difficulty
Type
Generic (SAE)
Recommended Tools
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