P1189 – Fuel Pressure Sensor Range/Performance (Nissan)

Description

The ECM detected a fuel pressure sensor signal outside the expected range.

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Symptoms

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

Causes

  • Faulty pressure sensor
  • Fuel pressure issue
  • Wiring issues
  • ECM signal error

Diagnosis

  • Test sensor output
  • Inspect wiring
  • Measure fuel pressure
  • Scan live data

Repair

  • Replace pressure sensor
  • Repair wiring
  • Fix fuel pressure issue