P0011

P0011

Camshaft Position “A” – Timing Over-Advanced or System Performance (Bank 1)

DESCRIPTION

The ECM optimizes the valve timing using the VVT system to control the intake valve camshaft. The VVT system includes the ECM, OCV and VVT actuator. The ECM sends a target “duty-cycle” control signal to the OCV. This control signal, applied to the OCV, regulates the oil pressure supplied to the VVT controller. The VVT controller can advance or retard the intake valve camshaft.
Example:
A DTC will set if: 1) the difference between the target and actual valve timings is more than 5°of the crankshaft angle and the condition continues for more than 4.5 seconds; or 2) the OCV is forcibly activated 63 times or more.
DTC P0011 and P0021 (advanced cam timing) are subject to 1 trip detection logic.
The monitor runs if all the conditions below are met:

  1. Warming up the engine (engine coolant temperature is 75°C (167°F) or more).
  2. Driving the vehicle at more than 40 km/h (25 mph) for 3 minutes.
  3. Idling the engine for 3 minutes.

Trouble Area

  1. Valve timing
  2. OCV (bank 1)
  3. OCV filter (bank 1)
  4. Camshaft timing gear assembly
  5. ECM
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