Subaru Error Code P0011: How to Fix It

Medium 1-3 hours High Severity Verified June 2026
Error Code
P0011
Brand
Subaru
Product Type
automotive
Severity
High
DIY Difficulty
Medium
Estimated Fix Time
1-3 hours
Subaru error code P0011 indicates that the intake camshaft position timing is over-advanced on Bank 1, typically caused by a faulty AVCS (Active Valve Control System) oil control valve or low oil pressure. This issue affects engine performance and can cause rough idling, reduced power, and poor fuel economy.
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Tools You'll Need

How to Fix Error Code P0011

  1. Check Engine Oil Level and Quality

    Ensure engine is off and cool before checking oil level.
  2. Change Engine Oil and Filter if Needed

    Engine oil and components may be hot. Allow engine to cool before servicing.
  3. Clear Error Code and Test Drive

  4. Locate and Inspect AVCS Oil Control Valve

    Ensure engine is cool before removing covers or handling electrical components.
  5. Test AVCS Oil Control Valve Resistance

    Ensure ignition is off before disconnecting electrical components.
  6. Remove and Clean or Replace AVCS Valve

    Mark valve orientation before removal. Some oil may spill when removing valve.
  7. Check Oil Pressure

    Oil pressure testing requires special tools and should be performed by qualified technician if you're not experienced.
  8. Inspect Timing Chain and Guides

    Timing chain inspection requires significant engine disassembly and specialized tools.

Parts You May Need

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When to Call a Professional

Call a professional if oil pressure testing reveals low pressure, timing chain noise is present, or you're not comfortable working with engine components. Internal engine problems causing P0011 require specialized diagnostic equipment and expertise.

Frequently Asked Questions

Can I drive with Subaru error code P0011?
You can drive short distances, but prolonged driving with P0011 can cause engine damage. The timing issue affects combustion efficiency and can lead to catalytic converter damage or engine knock. Get it diagnosed and repaired promptly.
What causes P0011 on Subaru vehicles?
Common causes include dirty or low engine oil, faulty AVCS oil control valve, low oil pressure from worn oil pump, stretched timing chain, or clogged oil passages. Regular oil changes prevent most P0011 issues.
How much does it cost to fix Subaru P0011?
Costs range from $50-100 for oil change, $200-400 for AVCS valve replacement, $500-800 for oil pump replacement, to $1500-3000 for timing chain issues. Diagnosis typically costs $100-150.
Will P0011 clear itself on Subaru?
P0011 will not clear itself - the underlying problem must be fixed. However, after repairs, the code can be cleared with an OBD2 scanner and will stay cleared if the issue is resolved.
What Subaru models get P0011 error code?
P0011 commonly affects Subaru Forester, Outback, Legacy, Impreza, and WRX models with variable valve timing systems, typically 2006 and newer. Any Subaru with AVCS can experience this code.