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Purge Valve & Purge Flow Faults

  1. Ensure that the ambient temperature signal is above 0 °C (if not, a short drive may be necessary to overcome the filtering used in this signal).
  2. Ensure that any other DTCs have been rectified and then clear them from the CM memory.
  3. Start the engine and allow to idle for at least 10 minutes.
  4. Stop/re-start the engine and allow to idle for a further 5 minutes.
  5. Check for DTCs.
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