P0011 – Meaning, Causes, Symptoms, & Fixes
Code P0011 Definition
Camshaft Position “A” – Timing Over -Advanced or System Performance (Bank 1)
What Does P0011 Mean?
Variable Valve/Camshaft Timing in the internal combustion engine control the intake and exhaust gases in and out of the gas combustion chamber. You want to vary the way your engine operates at different points of the engine’s rev range. Varying the different valve events: valve timing, valve duration, and valve lift allows the ECU to constantly make a call to the most power, the best mpg, and the lowest emissions. The different pistons that pump up and down leave the exhaust valves with the maximum air space that the engine can take in fuel and air to give you maximum power. When trouble code P0011 is set, it means that camshaft position “A” in Bank 1 is more advanced than the ECM has told it to be.
- Check Engine Light
- Hard start of the engine
- Rough running engine
- Increased fuel economy
- Failed emissions test
- The exhaust shaft has advanced too much when the ECM has told it to slow down to a lower timing level.
- Camshaft variable timing solenoid failure
- Camshaft phaser is seized in the advanced position
- Continuous oil flow to Variable Camshaft Timing chamber
- Viscosity of oil is too thick or too thin
Code P0011 Severity – Moderate
The engine may have erratic and other engine problems that could affect driving and fuel economy may decrease due to increase fuel consumption. As for any Diagnostic Trouble Code it should be repaired as soon as possible for no internal damage.
Code P0011 Common Diagnosis Mistakes
Replacing sensors or components without any indication of a problem with the sensors or components.
- Tools Needed to Diagnose:
- Car specific service manual
Difficulty of Diagnosis and Repair – (1-4)
- Visually inspect the connector, wiring, or valve problems with the Oil Control Valve for bank 1 exhaust valve.
- Check the engine’s oil level and viscosity to see if they are correct.
- Check the live freeze frame data
- Monitor the timing of the data and disconnect the Oil Control Valve to the exhaust camshaft. If there is a change it means that the valve is working correctly and there is an electrical problem within the ECM.
- Find your vehicle specific service manual and follow the pinpoint tests to repair them as needed.