P1176 – Swirl Control Valve Position Sensor (Nissan)

Description

The ECM detected improper operation of the swirl control valve position sensor.

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Symptoms

  • Rough idle
  • Poor acceleration
  • Hesitation
  • Reduced power
  • Check engine light

Causes

  • Faulty position sensor
  • Stuck swirl flaps
  • Vacuum leak
  • Wiring issues

Diagnosis

  • Test sensor
  • Inspect swirl flaps
  • Check wiring
  • Scan live data

Repair

  • Replace sensor
  • Repair wiring
  • Fix vacuum leaks
  • Clean swirl flaps

Related Problems

Related Fault Codes