P2141 - OBD Trouble Code

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This is a generic OBD-II code, so don’t worry if you have just found out that the P2141 code has been set in your vehicle. This code basically is indicative of a short or open circuit which is resulting in a low voltage return. It is set by the Engine Control Module (ECM) of your vehicle when it detects that the Exhaust Gas Recirculation (EGR) control valve circuit is lower than usual. Read on to know more about this code and how to resolve it

You may get confused with the definition of this code, as it suggests a fault with the EGR system when the problem is actually with the intake throttle actuator electrical system. This intake throttle opens and closes the throttle plate in an electronic throttle body vehicle. If the Powertrain Control Module (PCM) notes an issue with the intake throttle actuator it will set the P2141 code.

What causes this problem with the Exhaust Gas Recirculation Throttle Control Circuit 'A' Low?

• Short of the EGR control valve internally to the ground
• Open circuit of the EGR control wiring or valve
• Low voltage at the EGR valve

1. 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.
2. Diagnostic Tools - Faulty or inaccurate diagnostic tools won’t help you resolve you P2141 code. Find the perfect one to diagnose this code today from PartsAvatar.
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 P2141 code is flashing. If needed replace with PartsAvatar order from the comfort of your home, and have it delivered right to your doorstep.
4. Throttle Body - Fluid flow of your vehicle is managed here. Any damage to the throttle body can result in the P2141 code. Repair the damages or replace the throttle body by ordering online. It’s easy and you can avail free shipping on order above CAD $99.
5. Throttle Actuator - Is responsible for controlling the amount of air entering the engine via the driver's accelerator pedal. Any damages can be repaired via repairs or if that doesn’t help resolve the P2141 code then you will have to opt for replacement. Find the best for your car at PartsAvatar online.
6. Exhaust Gas Recirculation Valve - This valve performs the crucial function of recirculating a portion of an engine's exhaust gas back to the engine cylinders. Damages in the valve can cause a lot of engine damage, hence it is important that it is either repaired or replaced as per need. You can fix your P2141 code by ordering with PartsAvatar, we have a wide price range and variety for you to select from.

It is vital to know the symptoms of an issue as only then you would be able to solve the problem. So that’s why we have listed out some major symptoms of OBD Code P2141 here:

Common Symptoms

• The Check Engine Light is on
• When accelerated lightly the vehicle surges
• EGR becomes inoperative and causes engine to pre-detonate fuel at the incorrect time

Want to correct the Trouble Code P2141? Read these points mentioned below:

• Repair or replace the EGR control valve
• Repair or replace the corroded connector pins and other electrical components present at the EGR control valve or the ECM
• Repair or replace the damages to the Throttle body

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It is essential to diagnose this fault code. Here are some steps which a mechanic should follow for diagnosing the problem that triggered a P2141 code to be stored:

To begin with, get hold of all the instruments needed for successful diagnosis of this code, these will be; an OBD scanner, digital volt/ohmmeter, and an oscilloscope. In terms of information guides, you will need the service manual or the Technical Service Bulletin of your specific vehicle.

Now that you have everything handy, start by performing a visual inspection of the EGR valve control wiring and connectors, any damages noticed will have to be repaired or replaced. Check for all damages, like disconnected or shorted wires, some may even be corroded. Check the connectors and their pins for any loose or bent pins. Once you have solved these electrical issues, re-test the system so that you can be sure if the repairs have been successful. After verifying that all the system wiring, connectors and components are in working condition, you can connect your diagnostic scanner and retrieve all the codes stored. Remember to freeze frame the data, as it will help in diagnosing intermittent conditions which may have contributed to this code being set. Now, you can clear the codes and take your vehicle on a test drive to see if it returns or if the PCM enters readiness mode. If the latter happens, it’s a sign that you’re having an intermittent condition, these are tricky to resolve and may require the problem to worsen. If the code returns, you will have to continue your diagnosis.

Now refer your vehicles Technical Service bulletins for the tests to be conducted for diagnosis and repair or replace the EGR control valve accordingly. If there’s no issue found with it, chances are the problem is with the ECM. Replacing the ECM required reprogramming, so make sure you take help from a professional for this.

Common Mistakes When Diagnosing The P2141 Code

• Clearing the codes without freeze framing the data
• Skipping to clear the codes after the codes are fixed
• Replacing the EGR control valve before any issue with the valve is found

P2142 - Exhaust Gas Recirculation Throttle Control Circuit "A" High