Engine-CodesGeneric – P2143

P2143 Code - Exhaust Gas Recirculation Vent Control Circuit/Open

Quick Answer

The P2143 diagnostic trouble code (DTC) indicates an issue with the Exhaust Gas Recirculation (EGR) Vent Control Circuit. Common causes include Faulty EGR valve, Damaged wiring or connectors in the EGR system, Clogged EGR vent. 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
P2143 indicates Exhaust Gas Recirculation Vent Control Circuit/Open.
Common causes
Common causes include Faulty EGR valve, Damaged wiring or connectors in the EGR system, Clogged EGR vent.
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.
Table of contents Created and updated by William Orellana on Sep 06, 2024
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Code P2143 Description

The P2143 diagnostic trouble code (DTC) indicates an issue with the Exhaust Gas Recirculation (EGR) Vent Control Circuit. The EGR system is responsible for recirculating a portion of the exhaust gases back into the engine intake to reduce emissions and control combustion temperatures. The EGR system helps to lower nitrogen oxide emissions, improve fuel efficiency, and prevent engine knock.

OBDII Code P2143 - Exhaust Gas Recirculation Vent Control Circuit/Open
P2143 Code - Exhaust Gas Recirculation Vent Control Circuit/Open

Common Causes of P2143

  1. Faulty EGR valve
  2. Damaged wiring or connectors in the EGR system
  3. Clogged EGR vent
  4. Malfunctioning EGR control solenoid
  5. Carbon buildup in the EGR system

Symptoms of P2143

  1. Rough idling or engine misfires
  2. Reduced fuel efficiency
  3. Hesitation during acceleration
  4. Engine stalling or failure to start
  5. Check Engine Light illuminated on the dashboard

How to Fix P2143

  1. Begin by conducting a visual inspection of the EGR system components, checking for any visible damage or loose connections.
  2. Use a multimeter to test the EGR valve, control solenoid, and associated wiring for proper electrical continuity.
  3. Clean the EGR valve and components to remove any carbon buildup that may be causing the issue.
  4. Replace any faulty EGR system components, such as the EGR valve, control solenoid, or damaged wiring.
  5. Clear the DTC with a scan tool and test drive the vehicle to ensure that the issue has been resolved.

Cost to Fix P2143

The typical repair costs for addressing a P2143 code can range from $200 to $500, including parts and labor. However, the actual cost may vary depending on the specific cause of the issue, the make and model of the vehicle, and labor rates in your area. It's advisable to consult with a trusted mechanic or auto repair shop to obtain a more accurate estimate based on your individual circumstances. Keep in mind that diagnostic time and labor rates can fluctuate, so it's essential to factor in these variables when budgeting for the repair.

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Code P2143 Information for Specific Makes

  • P2143 Dodge — Exhaust Gas Recirculation Vent Control Circuit/Open
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 P2143 Code

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Discuss the causes and fixes for P2143 OBDII Code

  • hi i have puegout expert on 2008 2ltr hdi engine manigment light on and faulty anti pollution . drives fine . code p2143