[SOLVED] P1402 Code: Egr Function Open – How To Fix And Restore Performance

Are you experiencing trouble with your automobile and seeing the fault code P1402? This code typically indicates a problem with the EGR (Exhaust Gas Recirculation) system. The symptoms may vary, but you might notice reduced engine performance or increased emissions.

The most common causes of this fault code are a faulty EGR temperature sensor, an open or shorted EGR volume control valve harness, poor electrical connections, or a leaking or stuck open EGR volume control valve. To fix this issue, start by visually inspecting the wiring harness and connectors for any damage. Look out for broken, bent, pushed out, or corroded pins on the connectors.

This repair is of moderate importance and difficulty, with an estimated time of 1.0. Remember to check the “Possible Causes” mentioned above for a more accurate diagnosis.

Repair Importance Level6.67 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level6.67 (Out of 10)

Experiencing rough idling, stalling, and decreased engine performance? Check out the symptoms of fault code P1402 below.

  • The symptoms of the automobile fault code P1402 include: engine misfires, rough idling, reduced engine power, poor fuel efficiency, difficulty starting the vehicle, and the check engine light illuminating on the dashboard.

The automobile fault code P1402 can be caused by a faulty EGR temperature sensor, open or shorted harness, poor electrical connection, or a leakingstuck open EGR volume control valve.

  • The fault code P1402 can be caused by the following: a faulty EGR temperature sensor, an open or shorted harness for the EGR volume control valve, a poor electrical connection in the EGR volume control valve circuit, and a leaking or stuck open EGR volume control valve.

INNOVA 5210
Get an OBD Scanner for accurate, Your car-specific Error Diagnosis
  • Pinpoints your car-specific issues, giving accurate diagnostics for your exact make and model.
  • Works anywhere, even with limited connectivity, making it highly versatile.
  • Provides detailed insights into real-time performance for your exact make and model, beyond generic online explanations.
  • Tracks past issues of your vehicle, helping you spot recurring problems and monitor long-term performance, which online resources can’t offer.
  • Detects potential issues early, helping avoid costly repairs instead of just addressing current problems.
  • Regular checks support efficiency and emissions standards, potentially increasing resale value—hard to gauge with online info alone.
Buying through our links may earn us commission.

To fix the automobile fault code p1402, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code P1402, follow these steps: 1.
  • Check the possible causes mentioned above.
  • 2.
  • Visually inspect the wiring harness and connectors related to the fault code.
  • 3.
  • Look for any damaged components.
  • 4.
  • Check for broken, bent, pushed out, or corroded pins in the connectors.
  • The estimated repair time for this fix is 1.0 hour.

The factors influencing the cost of diagnosing and fixing the automobile fault code P1402 are the estimated repair time of 1.0 hour and the typical auto repair shop charges of $75 to $150 per hour.

When you see the Engine Light ON or the Service Engine Soon Warning Light, it could be due to the fault code P1402. This code indicates a problem with the Exhaust Gas Recirculation (EGR) Valve Position Sensor.

The EGR valve is responsible for recirculating a portion of the exhaust gases back into the engine to reduce emissions. However, if the EGR valve position sensor is malfunctioning, it can lead to issues with the engine’s performance and emissions control system.

It is important to address this fault code promptly to ensure optimal engine performance and to comply with emission regulations.

What are the possible causes of fault code P1402 in an automobile?

The fault code P1402 in an automobile can be caused by a faulty EGR temperature sensor, an open or shorted EGR volume control valve harness, a poor electrical connection in the EGR volume control valve circuit, or a leaking or stuck open EGR volume control valve. To fix this issue, it is recommended to visually inspect the wiring harness and connectors, check for damaged components, and look for any broken, bent, pushed out, or corroded connector pins.

How can I visually inspect the wiring harness and connectors to fix fault code P1402?

To fix fault code P1402, start by visually inspecting the wiring harness and connectors. Check for any damaged components and look for broken, bent, pushed out, or corroded connector pins. This will help identify any issues with the EGR temperature sensor, EGR volume control valve harness, or poor electrical connections. By checking these possible causes, you can take the necessary steps to resolve the fault code.

What should I look for when checking for damaged components and connector’s pins to resolve fault code P1402?

To resolve fault code P1402, start by checking for damaged components and connector’s pins. This code can be caused by a faulty EGR temperature sensor, an open or shorted EGR volume control valve harness, a poor electrical connection in the EGR volume control valve circuit, or a leaking or stuck open EGR volume control valve. Visually inspect the related wiring harness and connectors, and look for any broken, bent, pushed out, or corroded pins on the connectors. Don’t forget to check the “Possible Causes” listed above for a comprehensive solution.

p1402 error fault code explained

To fix the P1402 fault code, start by visually inspecting the wiring harness and connectors. Look for any damage or corrosion.

Check the EGR temperature sensor and the EGR volume control valve for any issues. Make sure the valve is not leaking or stuck open.

Check for any open or shorted circuits.

Scroll to Top