P0011 on a Honda Civic
P0011 means camshaft Position Timing Over-Advanced (Bank 1). On the Civic, a few causes come up far more than others.
What P0011 usually means on a Civic
P0011 indicates the intake cam timing is more advanced than commanded on the Civic's VTC system. On Honda's K-series and R18 this is closely tied to the VTC actuator - the same part responsible for the well-known cold-start rattle - and to the condition of the oil feeding the cam phaser. Dirty or low oil is a frequent trigger because the VTC actuator is oil-pressure driven. It often surfaces as a brief startup rattle before the code appears.
Most common causes on the Civic
- Worn VTC actuator
Honda's VTC actuator wears and rattles on cold start; when it cannot hold timing it sets P0011.
- Dirty or low engine oil
The oil-pressure-driven cam phaser mis-times when oil is old, low, or the wrong viscosity.
- Stuck VTC oil control (spool) valve
A gummed cam-timing solenoid cannot regulate pressure and lets the cam over-advance.
- Clogged oil control valve screen
Sludge in the OCV filter screen restricts flow to the phaser.
What P0011 costs to fix on a Civic
Start with an oil change to the correct spec and a cam-timing (VTC) solenoid, both modest costs, before assuming the actuator. A VTC actuator replacement is more involved because it sits on the cam sprocket, raising labor. Many Civics are fixed for well under a major-repair figure by addressing oil and the solenoid first.
Fixing it
On the Civic, try fresh correct-viscosity oil and a new VTC oil control valve before condemning the actuator; the infamous cold-start rattle without a persistent code is often lived with rather than repaired.
For the full step-by-step diagnosis order (any vehicle), see the main P0011 guide.
Year, engine and mileage change the answer. Start a case and Redline weighs these causes against what your car shows, then names the check that would settle it.
Other codes on the Honda Civic
Honda Civic problems & recalls by year
Based on widely reported patterns for this model; individual causes vary by year, engine and history. Generic P0011 behavior is covered on the main P0011 page. Confirm with a scan tool before buying parts.
P0011 on your Civic?
Every problem becomes a Case. Tell Redline what your Civic is doing: it shows what the evidence supports, what’s still missing, and what to check next, before you approve a repair.
“Inner pad ~1 mm. Outer pad 3 mm.”
Next: check the slide pins move freely before buying parts.