P009D OBD Error Code: Problem & Solutions

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If your vehicle is showing some odd symptoms like leakage from tailpipe or low engine performance accompanied by high fuel consumption, there are chances that your vehicle is set to one or more of the five possible codes that indicates that something is wrong with your fuel delivery system. Let's figure it out in the sections below.

If you are uncertain about this problem, you must read through this entire information on OBD P009D error code and also the related error codes like P009B, P009D, P009E and P009F. We are sure they will provide your insight into your vehicle’s issue.

Your vehicle’s PCM will set the code P009D when it detects that the Fuel Pressure Relief Control Circuit is open.

What causes this problem with Fuel Pressure Relief Control Circuit?

• Damaged or defective fuel pump can cause this problem
• A faulty fuel pressure relief valve can become another potential cause
• Failure of fuel pressure regulator can be another cause
• Wirings and connectors that are damaged or corroded can become a common cause
• Powertrain control module, commonly known as PCM if showing issues can be a potential cause
• Fuel pressure relief valve harness if shorted or open can cause this problem
• Poor electrical connections within the fuel pressure relief valve circuit can be another common cause

1. Fuel Pump Wiring & Connectors - As already clear from the section above that corroded or broken wirings and connectors are possible causes behind this issue. So, replacing them will definitely be a good idea.
2. PCM - If your vehicle’s powertrain control module is defective it can cause this issue, so you might also need to replace the car’s PCM to correct this engine error code P009D.
3. Fuel Pump - If you are looking for fuel pumps to correct this issue? Then we can be your dream destination. We have stocked best priced fuel pumps for every make and model on the Canadian roads.
4. Fuel Pressure Relief Valve - If you need fuel pressure relief valve to correct this concern then all you need to do is to select your make/model specific fuel pressure relief valve and get this error fixed at the earliest. We have in stock best range of auto parts for you.
5. Fuel Pressure Regulator - We are sure that for fixing this problem you will need to replace the defective fuel pressure regulator. With us you can also find a wide variety of Fuel pressure regulators from top auto brands to fix this OBD Error code P009D.
6. Diagnostic Tools - Search through our range of best diagnostic tools online and be ready to become that DIY guy you always wished to be.

After you know all the causes behind the problem, next you will need to know some common symptoms of this obd error code P009D related to your fuel pressure relief control circuit.

Common Symptoms

• Car’s engine shows low performance and inefficiency
• CEL, also known as Check engine light will illuminate
• Fuel leakage from the tailpipe
• Starting Issues with the engine
• Rise in fuel consumption

To make sure that you are actually troubled by the OBD error code P009D, you will need to conduct a complete diagnosis of the problem that we have explained in this section. Before you start preparing to fix this issue, we recommend you to make sure that you are actually facing this problem. 

Follow these steps mentioned below to get rid of the problem

• Firstly, let’s get rid of that damaged fuel pump
  
• Secondly, let's remove the defective or damaged fuel pressure relief valve
• Next, we will need to replace the damaged fuel pressure regulator
• After removing all these damaged parts, next you will need to either clean or change the corroded connectors and wirings
• Also, during diagnosis if you find that the PCM or ECU is defective, you will need to replace that too 

If you need parts to fix this problem, you can simply rely on us for quality parts. We have in stock best priced Fuel delivery system parts for all makes and models online in Canada.

As we already made it clear that before commencing to fix the problem you need to make sure that you are actually facing that problem. For this we have listed out few diagnosis step, just to make sure that you have that problem.

Firstly, you will need to test the Technical Service Bulletins also known as TSB’s specific to your vehicle’s make and model. This will save a lot of your time and also direct you towards the right direction.

Secondly, locate and check all the fuel pressure relief control circuit components such as the fuel pump, fuel pressure regulator and Powertrain control module.

Next, perform a visual inspection to check all the associated wiring and connector for any defects.

Common mistakes when diagnosing the P009D code

While conducting the diagnosis few common mistakes that you can avoid commiting are listed as follows

• There might be a fuel pressure regulator failure
• Also, there can be a PCM failure
• Wiring issue can also occur