P1402 – EGR Temperature Sensor Fault (Nissan)

Description

The ECM detected a malfunction in the EGR temperature sensor.

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Symptoms

  • Poor drivability
  • High emissions

Causes

  • Sensor failure
  • Wiring issue
  • Exhaust leak

Diagnosis

  • Check sensor resistance
  • Inspect wiring
  • Check exhaust

Repair

  • Replace sensor
  • Repair wiring