P0011 - Camshaft Position 'A' Timing Over-Advanced or System Performance (Bank 1)
Plain-English meaning
The engine control module (ECM) has detected that the timing of the intake camshaft on bank 1 is more advanced than the expected range.
What to check first
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What not to replace yet
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Stop driving when
If the engine exhibits severe misfire, stalling, or significant power loss, stop driving and have the vehicle inspected promptly.
Related symptoms
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Owner steps
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Likely causes
Faulty variable valve timing (VVT) solenoid or actuator (medium)
Low or dirty engine oil affecting VVT operation (medium)
Timing chain or belt issues (medium)
Faulty camshaft position sensor (medium)
Wiring or connector problems in the VVT system (medium)
Engine mechanical problems affecting timing (medium)
Shop steps
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Follow-up questions
Has the engine oil been changed recently and is it the correct grade?
Are there any other diagnostic trouble codes present?
Have you noticed any changes in engine performance or unusual noises?
When did the Check Engine Light first come on?
Has any recent maintenance or repair work been done on the timing system?