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P1402 – Nissan DTC

Nissan DTC P1402 – EGR System

DTC P1402 meaning on Nissan

DTC P1402 for Nissan refers to an issue with the Exhaust Gas Recirculation (EGR) system. This diagnostic trouble code indicates that there is a fault in the EGR valve position sensor circuit.

Nissan DTC P1402 symptoms

  • Check Engine Light (MIL) illuminated
  • Decreased engine performance
  • Increased fuel consumption
  • Possible rough idling or stalling

Nissan DTC P1402 causes

  • Malfunctioning EGR valve position sensor
  • Wiring issues in the EGR valve position sensor circuit
  • Carbon buildup in the EGR system
  • Problems with the EGR valve itself

Nissan DTC P1402 seriousness

The DTC P1402 on a Nissan should not be ignored as it can lead to decreased engine performance and increased fuel consumption. Additionally, prolonged driving with this issue may cause damage to other engine components.

How to diagnose DTC P1402 on Nissan

  1. Use an OBD-II scanner to retrieve the trouble codes
  2. Inspect the EGR valve and its wiring for any visible damage
  3. Test the EGR valve position sensor for proper operation
  4. Check for carbon buildup in the EGR system

How to fix DTC P1402 on Nissan

  1. Replace the EGR valve position sensor if faulty
  2. Repair any damaged wiring in the EGR valve position sensor circuit
  3. Clean the EGR system to remove carbon buildup
  4. If necessary, replace the EGR valve itself

How to erase DTC P1402 on Nissan

  1. After fixing the underlying issue, use an OBD-II scanner to clear the trouble codes
  2. Drive the vehicle to allow the system to perform a self-check
  3. If the issue has been resolved, the DTC P1402 should no longer reappear

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← All Nissan Diagnostic Trouble Codes

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