AutoCodes – Chevrolet – P1403 Chevrolet

P1403 Chevrolet Code - Exhaust Gas Recirculation System Valve 1

Quick Answer

The Powertrain Control Module (PCM) monitors the Exhaust Gas Recirculation (EGR) valve pintle position input to ensure that the valve responds properly to commands from the PCM. Common causes include Carbon blockage of the pintle, Faulty Exhaust Gas Recirculation (EGR) valve. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: P1403 Chevrolet indicates Exhaust Gas Recirculation System Valve 1.
Common causes: Common causes include Carbon blockage of the pintle, Faulty Exhaust Gas Recirculation (EGR) valve.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 43,079

How popular is this code, among other codes? Medium

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 19, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1403 Chevrolet Description

The Powertrain Control Module (PCM) monitors the Exhaust Gas Recirculation (EGR) valve pintle position input to ensure that the valve responds properly to commands from the PCM. When the ignition switch is turned ON, the PCM learns the EGR learned minimum position. The PCM compares the EGR learned minimum position to the EGR position sensor when the EGR valve is commanded closed.

OBDII Code P1403 Chevrolet - Exhaust Gas Recirculation System Valve 1 - AutoCodes.com — P1403 Chevrolet Code - Exhaust Gas Recirculation System Valve 1

What does this mean?

What are the Possible Causes of the DTC P1403 Chevrolet?

Carbon blockage of the pintle
Faulty Exhaust Gas Recirculation (EGR) valve

How to Fix the DTC P1403 Chevrolet?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1403 Chevrolet code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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Need more information on how to fix the P1403 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1403 Chevrolet code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1403 Chevrolet Code

1. What are common symptoms of OBDII code P1403 in a Chevrolet related to the Exhaust Gas Recirculation (EGR) System Valve 1?

- Common symptoms include rough idling, engine stalling, decreased fuel efficiency, and the illumination of the check engine light.

2. What are the potential causes of OBDII code P1403 in a Chevrolet indicating an issue with the EGR System Valve 1?

- Causes may include a faulty EGR valve, a clogged EGR passage, wiring issues, or a malfunctioning EGR solenoid.

3. How can I diagnose the OBDII code P1403 in my Chevrolet, specifically related to the EGR System Valve 1?

- Diagnostic steps may involve checking the EGR valve for proper operation, inspecting the EGR passages for blockages, and testing the EGR solenoid and related wiring for faults.

4. What are some repair tips for addressing OBDII code P1403 in a Chevrolet associated with the EGR System Valve 1?

- Repair tips may include cleaning or replacing the EGR valve, clearing any blockages in the EGR passages, checking and repairing any damaged wiring, and testing the EGR solenoid.

5. Can driving with OBDII code P1403 triggered in a Chevrolet due to EGR System Valve 1 issues cause further damage to the vehicle?

- Driving with this code may lead to poor engine performance, reduced fuel efficiency, and potential damage to the catalytic converter over time if left unresolved.

6. Are there any preventive maintenance measures to help avoid encountering OBDII code P1403 in a Chevrolet related to the EGR System Valve 1?

- Regularly cleaning and inspecting the EGR system components, including the valve and passages, can help prevent issues leading to this code.

7. Is it possible to temporarily reset OBDII code P1403 in a Chevrolet caused by EGR System Valve 1 problems by disconnecting the battery?

- Disconnecting the battery may reset the code temporarily, but it is recommended to diagnose and address the underlying issue to prevent the code from reappearing.

8. How crucial is it to address OBDII code P1403 in a Chevrolet linked to the EGR System Valve 1 promptly?

- It is important to address this code promptly to ensure proper engine performance, fuel efficiency, and to prevent potential long-term damage to the vehicle's emissions system.

9. Can a DIY enthusiast with moderate automotive knowledge repair OBDII code P1403 in a Chevrolet associated with the EGR System Valve 1?

- Depending on the specific issue, a DIY enthusiast may be able to address this code by following repair guides and utilizing basic tools for tasks like cleaning or replacing the EGR valve.

10. Are there any recalls or technical service bulletins related to OBDII code P1403 affecting Chevrolet vehicles with EGR System Valve 1 concerns?

- It is advisable to check with Chevrolet dealerships or online resources for any relevant recalls or technical service bulletins pertaining to this specific OBDII code and related EGR system concerns.