P1204 – Charge Pressure Actuator Fault (BMW)

Description

P1204 BMW indicates a fault in the charge pressure actuator.

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Symptoms

  • Hesitation
  • Reduced power
  • Slow spool

Causes

  • Actuator failure
  • Vacuum leak
  • Control rod binding

Diagnosis

  • Check actuator movement
  • Inspect vacuum lines
  • Scan DME

Repair

  • Replace actuator
  • Fix vacuum leaks
  • Repair linkage

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