P2143 OBD Error Code: Problem & Solutions

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The P2143 code is a sign that the Powertrain Control Module has detected an issue with the flow rate of the exhaust gas recirculation system (EGR) vent control circuits. When this code is set you may find that the check engine light goes on, in some vehicle multiple drive cycles are needed for this light to be illuminated. You can read more about this code and how to diagnose it here.

Your vehicle's PCM is responsible for calculating the required EGR flow as per the percentage of the valves opening at any given moment, in this case the EGR position sensor is used to monitor the EGR valves. When the PCM detects that the air pressure isn’t as needed upon activation of the EGR valve, then it will proceed to set the P2143 OBD error code.

What causes this problem with the Exhaust Gas Recirculation Vent Control Circuit/Open?

• The EGR valve is dirty or clogged
• Defect in the EGR vent solenoid
• A vacuum leak
• A kink present in the vacuum line
• Issue with wiring in terms of damages
• Faulty ECM

1. Exhaust Gas Recirculation Vent Solenoid - Needs to be working in good condition so that the EGR doesn’t have any issues. Replace it with PartsAvatar and get rid of the P2143 code.
2. Engine Wiring Connector - Fault or damaged connectors can interfere with the performance of the vehicle. Repair or replace as needed. You can find the best quality at affordable prices at PartsAvatar. Order online today.
3. Engine Control Module - Performs various important functions that help your vehicle to run smoothly. It is the computer of your vehicle, don’t delay repair if the P2143 code is flashing. If needed replace with PartsAvatar order from the comfort of your home, and have it delivered right to your doorstep.
4. Exhaust Gas Recirculation - Helps in reducing nitrogen oxide emissions from the vehicle, it is also responsible for a part of an engine's exhaust gas back to the engine cylinders. A malfunction of issue with the EGR can cause plenty engine damage. Repair ir accordingly or replace with PartsAvatar today.
5. Powertrain Control Module - This is the brain of your engine management system, all codes can be set due to an issue with the PCM. Hence if you’re finding any issues in it, repair or replace. You can find superior quality PCMs at PartsAvatar Canada. Order online and receive it within a matter of days.
6. Diagnostic Tools - Faulty or inaccurate diagnostic tools won’t help you resolve you P2143 code. Find the perfect one to diagnose this code today from PartsAvatar.

For us our customers are everything, and that’s why we will help you to diagnose P2143 code by mentioning some important symptoms below:

Common Symptoms

• Low engine power
• Acceleration is poor
• Lowered fuel economy
• The check engine light is on
• Symptoms of engine misfire are present

You can sort out the P2143 code by doing some repairs or replacements:

• Repair or replace the EGR valve
• Repair or replace all the faulty electrical components
• Repair or replace the EGR vent solenoid
• Repair or replace the faulty ECM

There is no need to get strained if your OBD Code is still flashing up as we are here at your service. Have a look at our superior variety of EGR Vent Solenoid, Connector and many more. Now all your problems would vanish within no time.

Here are some steps which you should follow in order to diagnose this fault code P2143:

Start off by researching the Technical Service Bulletins (TSB) of your vehicle. For advanced diagnosis you will require some tools and also information. You can follow the steps before to fix this code:

The EGR systems are hot by nature as they are connected directly to the exhaust system, so before you begin your diagnosis by ensuring that your vehicle has cooled down completely. If the engine hasn’t cooled down completely you may burn yourself during diagnosis. So, don’t skip this step for safety reasons. The EGR valves are mounted on the exhaust and the vent solenoids controlling the EGR venting are present anywhere in the engine bay, usually they’re on the firewall. All the burnt and broken vacuum lines should be repaired or replaced as per need. The rubber vacuum lines running from the vent solenoid to the EGR system should also be replaced as usually if one is damaged the others ones will soon be damaged too.

Now check the harnesses, ensure they’re all in good working condition, and aren’t loose or not coming in the way of other components. All the harnesses that are showing signs of corrosion, or are burned will have to be repaired or replaced as per the extent of damage. Move on to inspecting the vent solenoid for any water intrusion or damages such as cracks. Also check connectors for damages and see if they're making a proper electrical connection. You can also check the EGR valve for any issues and use a carburettor cleaner and a toothbrush to clean the soot from areas where it’s more difficult to clean.

Common Mistakes When Diagnosing The P2143 Code

• Replacing the EGR valve hastily before checking its components for fault
• Replacing the EGR valve when the issue is with the circuitry and other electrical parts