P1018 – Valvetronic Sensor Signal Too High (BMW)

Description

P1018 BMW indicates the Valvetronic position sensor signal is too high.

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Symptoms

  • Rough idle
  • Poor acceleration
  • Hesitation

Causes

  • Sensor failure
  • Wiring open circuit
  • Connector issue

Diagnosis

  • Check sensor voltage
  • Inspect wiring
  • Check continuity

Repair

  • Replace sensor
  • Repair wiring
  • Fix connector