Guide To P042F OBD Error Code Solutions

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OBD error code P042F flashing? Wondering what it means? If Yes, then you are at the right place. We at PartsAvatar Canada are here to help you out will all your queries related to OBD code P042F. OBD error code P042F is a generic trouble code, which means it applies to all OBD-II vehicles, though the steps to fix them might vary depending upon the make.

You will be diagnosed with this error code P042F when your vehicle’s PCM, also known as the powertrain control module detects that Exhaust Gas Recirculation Circuit A is stuck closed. There can be a number of reasons behind this error code. To know more about them, have a look at the below listed points.

What causes this problem with the Exhaust Gas Recirculation "A" Control Stuck Closed?

• Bad EGR valves
• Poor or malfunctioning EGR Control Solenoid
• EGR Control circuit A electrical issues
• Problematic DPFE sensor
• EGR valve position sensor malfunctioning
• PCM programming errors

1. EGR Valve - It is surely a good idea to replace the defective ones with brand new ones, considering that P042E code indicates issues with your vehicle’s EGR valve. You can find with us high quality egr parts for every make & model on the Canadian roads.
2. EGR Control Solenoid - If your car’s EGR control solenoid is found to be binding, you might think of exchanging them. PartsAvatar has a wide selection of egr parts for you to choose from.
3. EGR Valve Position Sensor - need one for your vehicle? If yes, then you can find the best ones from top brands with us.
4. DPFE Sensor - if you are facing OBD error code P042F then it might demand a new DPFE sensor if found faulty. If you wish to get it done at the earliest then you can simply browse through our website to find one for your make and model.
5. Powertrain Control Module - Are you looking for Powertrain Control module, commonly known as PCM? If yes, then have a look at our collection. You will easily find one for your vehicle make & model.
6. Diagnostic Tools - You can choose from a wide selection of diagnostic tools on our website and make it easy on yourself when diagnosing problems and creating accurate solutions for your car.

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 P042F here:

Common Symptoms

• Slight fall in fuel economy
• Not many significant symptoms

Want to correct the Trouble Code P042F? Read these points mentioned below:

Fixing error code P042F involves replacing the exhaust gas recirculation valve and related damaged parts. In case you only drive in town or take your vehicles on a short trip, chances are that the carbon build-up clogs your exhaust gas recirculation valve. This can block the flow of exhaust gases resulting in the valve to stuck open.

Parts Avatar Canada is here to solve all your issues related to car parts. We have stocked a wide range of best priced EGR Valve, EGR Control Solenoid, EGR Valve Position Sensor, DPFE Sensor and a lot more to help you out in fixing your car.

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

To be able to diagnose this error code you will need few diagnostic tools such as a diagnostic scanner, a digital volt or ohmmeter and vehicle information source. Begin by visually inspecting the EGR system parts such as its related wiring and connectors. In case you come across any corroded, clogged or burnt out components, make sure to replace them.

Now, once done with replacing these components, the next step is to connect the scanner to the diagnostic port of your vehicle and restore all the stored codes and freeze the frame. Take a note of all the codes flashing and after clearing the codes, conduct a test drive of your vehicle to check what codes are reset.

After this you will need to inspect the desired EGR position and the current EGR position as depicted by the data stream display. In case the actual EGR position conveys the message of EGR being open too far, be sure that there is a carbon piece clogging the EGR valves.

In the end, you can remove the valve to check it but, in some vehicles, the location of the valve makes it difficult to remove it. In case you detect that there is no blockage in the EGR valve, follow the manufacturer’s recommendations for testing the EGR actuator solenoids. You can use a DVOM to test the individual circuits between the PCM and egr valve connectors.

Common Mistakes When Diagnosing the P042F Code

In order to avoid any misdiagnosis, make sure you do not replace any of the following parts without making sure of it being damaged.

• EGR valve failure
• Powertrain Control Module (PCM) failure
• Wiring issue

P042E - Exhaust Gas Recirculation "A" Control Stuck Open