Engine-Codes - Nissan - P1402 2003 NISSAN SENTRA

P1402 2003 NISSAN SENTRA - EGR Function Open

Repair Importance Level: 2/3
Repair Difficulty Level: 2/3  What is this?
Table of contents

P1402 2003 NISSAN SENTRA Possible Causes

  • Faulty EGR temperature sensor
  • EGR volume control valve harness is open or shorted
  • EGR volume control valve circuit poor electrical connection
  • EGR volume control valve leaking or stuck open

How is the P1402 2003 NISSAN SENTRA code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Tech Notes

Start by cleaning the EGR valve, if the code persists it may be necessary to replace the EGR Valve.

What is the cost to diagnose the P1402 2003 NISSAN SENTRA code

Labor: 1.0

The cost to diagnose the P1402 2003 NISSAN SENTRA code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
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Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1402 2003 NISSAN SENTRA Meaning

This system controls flow rate of Exhaust Gas Recirculation (EGR) led from exhaust manifold to intake manifold. The opening of the EGR by-pass passage in the EGR volume control valve changes to control the flow rate. A built-in step motor moves the valve in steps corresponding to the Engine Control Module (ECM) output pulses. The opening of the valve varies for optimum engine control. The optimum value stored in the ECM is determined by considering various engine conditions. The EGR volume control valve remains closed under the following conditions.
- Engine stopped
- Engine starting
- Engine idling
- Low engine coolant temperature
- Excessively high engine coolant temperature
- High engine speed
- Wide open throttle
- Low battery voltage

More Information

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