P000A AUDI - 'A' Camshaft Position Slow Response Bank 1

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What does this mean?

Possible causes

  • Erratic camshaft position due to low oil pressure
  • Oil flow restriction in the oil passages or the variable camshaft timing (VCT) valve body
  • Camshaft advance mechanism binding (VCT unit)
  • Damaged VCT phaser
  • Radio frequency interference (RFI)
  • Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • P000a Audi Description

    The Powertrain Control Module (PCM) monitors and evaluates the response of the actual position on a target position change. The setpoint and camshaft position are saved at the beginning of a setpoint change. If this change over time is large enough (gradient), the camshaft phasing change is evaluated. If the change after the diagnostic time is smaller than a threshold, a slow response is detected, and if the value is greater, then there is no concern. By detecting a concern, an antibounce counter is incremented otherwise the counter is decremented. If the counter exceeds an adjustable limit, the P000A is set.
    OBDII Code P000a Audi - 'A' Camshaft Position Slow Response Bank 1 - Engine-Codes.com

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