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Guide To P009E OBD Error Code Solutions

OBD Code P009E - Fuel Pressure Relief Control Performance/Stuck Off

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Low engine performance and increased fuel consumption when observed with defective fuel pump and some problems with the fuel pressure relief control circuit. Chances are your PCM sets one of the five possible OBD-II trouble codes from OBD error codes - P009B, P009C, P009E, P009E or P009F.


P009E code will be set when the PCM detects that there exists fuel pressure relief control circuit stuck off issues. 

Learn More About OBD Error Code P009E

As we already know that the Fuel Pressure Relief valve is designed to release excessive fuel pressure. When the engine control module (PCM) detects an issue with the Fuel Pressure Relief Valve signal or fuel pressure relief control circuit stuck off, the PCM will set code P009E.


As a result of this code, your engine will start showcasing issues with performance and fuel efficiency.


What causes this problem with Fuel Pressure Relief Control Circuit?


  • Failure of the fuel pressure regulator can be another cause
  • Vehicle’s corroded or damaged connector and wirings
  • Poor electrical connections of the fuel pressure relief valve circuit
  • A defective fuel pump can cause this problem
  • If your vehicle’s fuel pressure relief valve is faulty, it can become another potential cause
  • PCM issues can too become a potential cause
  • Shorted or open fuel pressure relief valve harness

Replace/Repair These Parts To Fix OBD Code P009E

  1. Fuel Pump - Searching for your vehicle specific fuel pumps? If yes, then we can be your dream destination. We have stocked best priced fuel pumps for every make and model on the Canadian roads.
  2. Fuel Pressure Relief Valve - We at PartsAvatar have in stock best range of fuel pressure relief valve for you, for each and every model.
  3. Fuel Pump Wiring & Connectors - Taking into account that corroded or broken wirings & connectors are potential causes behind this issue. So, replacing them will definitely be a good idea.
  4. 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 P009E.
  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 P009E.
  6. Diagnostic Tools - Do you want to be that DIY guy you always wished to be? Well, to become that you will need few diagnostic tools that you can easily find with us.

Symptoms Of OBD Error Code P009E

Now when this alien code OBD P009E is no longer that alien, let's have a deeper look into few of its common symptoms.


Common Symptoms


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

How To Correct P009E Fuel Pressure Relief Control Performance/Stuck Off

If you really want to throw this problem out of the door you will need to follow some steps which are mentioned below. But before this we recommend you to make sure that you are actually facing this problem.


  • Replacing the defective fuel pump is a must, that must be your first step
  • Next on your list should be replacing the defective or damaged fuel pressure relief valve
  • After that you will need to replace the damaged fuel pressure regulator
  • Getting rid of those corroded wires and connectors is also must. Hence, next you will need to either clean or change the corroded connectors and wirings
  • Also, if you find that the PCM or ECU is defective, you will need to replace that too

Searching for parts to fix this problem? If yes, then 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.

Easy Diagnosis Of Engine Error OBD Code P009E

In order to solve any problem, its essential to diagnose the problem first. In the same manner let's have a look on how to diagnose the obd error code P009E.


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


Common mistakes when diagnosing the P009E code


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


  • There might be a fuel pressure regulator failure
  • There can be a powertrain control module failure
  • Wiring issue can also occur

Other Diagnostic Codes Related To OBD Code P009E

P009B - Fuel Pressure Relief Control Circuit/Open

P009C - Fuel Pressure Relief Control Circuit Low

P009D - Fuel Pressure Relief Control Circuit High

P009F - Fuel Pressure Relief Control Stuck On