Engine-Codes.com
Engine-Codes – Chevrolet – P1407 Chevrolet

P1407 Chevrolet Code - Exhaust Gas Recirculation Control Circuit Shorted

Quick Answer

The P1407 diagnostic trouble code for Chevrolet vehicles indicates a problem with the Exhaust Gas Recirculation (EGR) control circuit being shorted. Common causes include Faulty EGR valve, Wiring or connector issues in the EGR control circuit, Carbon buildup in the EGR system. 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
P1407 Chevrolet indicates Exhaust Gas Recirculation Control Circuit Shorted.
Common causes
Common causes include Faulty EGR valve, Wiring or connector issues in the EGR control circuit, Carbon buildup in the EGR system.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P1407 Chevrolet Description

The P1407 diagnostic trouble code for Chevrolet vehicles indicates a problem with the Exhaust Gas Recirculation (EGR) control circuit being shorted. The EGR system plays a crucial role in reducing emissions and improving fuel efficiency by recirculating a portion of exhaust gases back into the engine's combustion chambers. This helps lower combustion temperatures and reduces the formation of harmful nitrogen oxide (NOx) emissions.

OBDII Code P1407 Chevrolet - Exhaust Gas Recirculation Control Circuit Shorted
P1407 Chevrolet Code - Exhaust Gas Recirculation Control Circuit Shorted

Common Causes of P1407 Chevrolet

  1. Faulty EGR valve.
  2. Wiring or connector issues in the EGR control circuit.
  3. Carbon buildup in the EGR system.
  4. EGR temperature sensor malfunction.
  5. Electronic control module (ECM) failure.

Symptoms of P1407 Chevrolet

  1. Check Engine Light is illuminated.
  2. Reduced fuel efficiency.
  3. Engine hesitation or stumbling.
  4. Rough idle.
  5. Engine stalling or misfiring.

How to Fix P1407 Chevrolet

  1. Diagnose the EGR system using a scan tool to confirm the P1407 code and identify the specific cause of the issue.
  2. Inspect the wiring and connectors in the EGR control circuit for any damage or loose connections. Repair or replace as necessary.
  3. Check the EGR valve for proper operation and cleanliness. Clean or replace the valve if needed.
  4. Test the EGR temperature sensor for proper function and replace if faulty.
  5. Clear the trouble code from the ECM's memory and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1407 Chevrolet

The cost of repairing a shorted EGR control circuit can vary depending on the specific cause of the issue and the labor rates in your area. On average, the cost of parts for this repair can range from $50 to $200, while labor costs can range from $100 to $300. Keep in mind that additional diagnostic time may be required to pinpoint the exact cause of the problem, so it's advisable to consult with a professional mechanic for an accurate cost estimate.

Need more information about the P1407 Chevrolet code?

Need more information on how to fix the P1407 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1407 Chevrolet code diagnosed by a professional: Find a repair shop in your area

Information for Specific Chevrolet Models

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 P1407 Chevrolet Code

No Frequently Asked Questions about P1407 Chevrolet Code found.

Discuss the causes and fixes for P1407 Chevrolet OBDII Code

Submit a New Comment

Code P1407 Chevrolet comments

No comments found for this page.