Guide To P2539 OBD Error Code Solutions

<<See All OBD Codes

Are you looking for information with regards to the P2539 error code? Read further to know more. Reduced engine performance is commonly known as low-pressure fuel system sensor circuit. The fuel pressure sensor will look after the fuel pressure in the fuel system which goes to the fuel injectors. The P2539 error will get stored if an erratic signal is sent by the sensor.

The PCM will receive one or more voltage signal that is the fuel temperature sensor which might be or may not be a part of the fuel pressure sensor. In order to identify the correct amount of fuel to be injected into the engine, the PCM will carefully look at the FPS sensor voltage. If the inputs differ too much, then the error will be set. PCM will also look at the voltage signal from the FPS sensor so as to find if it’s proper during key on and engine off. The error can also get stored due to mechanical or electrical issues

What causes this problem with the Low-Pressure Fuel System Sensor Circuit?

• The fuel level might be very low.
• The low-pressure fuel system sensor might not work properly.
• Presence of a short circuit or an opening in the low-pressure fuel system sensor harness.
• Weak electrical connection in the low-pressure fuel system sensor circuit.

1. Powertrain Control Module - Illumination of the check engine light proves that the PCM is defective or damaged. Get it fixed instantly by replacing it with a new PCM.
2. Fuel Pressure Sensor - Hesitation of the engine to start during acceleration is a sign of a damaged air pressure sensor. Get rid of it as soon as possible.
3. Fuel Pump - Failure of the vacuum pump can impact the overall performance of the vehicle. Fix or change it as soon as possible.
4. Fuel System - Do you find the fuel system to be malfunctioning Get the right replacement for your fuel system from Parts Avatar at the best prices.
5. Fuel Injector - Does your engine surge very often? Then it is an indication that the fuel injector is faulty and it must be replaced quickly to avoid the P2539 error

Our main motive is to achieve customer satisfaction and that’s why we will help you to diagnose P2539 code by mentioning some major symptoms below:

Common Symptoms

• The vehicle will refuse to accelerate.
• The malfunction indicator light will remain the same.
• Impossible for the vehicle to start.
• Fuel economy is very low.

Have a look at some ways with which you can correct the P2539 code:

• Replacing the ignition switch can help you to get rid of this error.

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 PCM, fuel pressure sensor, fuel pump, fuel system, fuel injector 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 P2539:

• As a very step, the technical service bulletin of your vehicle has to be checked. The problem in your vehicle might be known with a known fix which has been put out by the manufacturer and it can save both the time and money during the diagnostic procedure.
• Secondly, find the FPS sensor in your vehicle. You can actually find the sensor directly attached to the fuel rail which is placed close to the injectors or the intake manifold.
• Once it is found, visually check the connectors and wires.
• See if there is any scraping, rubbing, burnt spots or molten plastics.
• Separate the connectors and carefully check the terminals that are the metal parts which is inside the connector.
• Check if they are burnt or if there is a green tint which indicates the corrosion.
• If the terminals have to be cleaned, then use the electrical contact cleaner and plastic bristle brush.
• Allow it to dry and apply electrical grease when the terminals come in contact with each other.
• Clear the trouble codes from the memory with the help of a scan tool and see if the P2539 error appears again.
• If the error does not appear, then the problem might have raised due to connection problem.
• If the error shows up, then the FPS sensor and its related circuit must be checked. Turn off the key and separate the electrical connector at the FP sensor.
• Attach a digital voltmeter black lead to the ground terminal at the FPS wiring harness connector and the red lead of the digital voltmeter to the power terminal. Turn off the engine with the key on.
• Look for the manufacturer’s specification. The readings of the voltmeter should be either 12 volts or 5 volts. If not so, fix the wires on the power or ground wire or change the faulty PCM.
• Check the signal wire, if the earlier test is passed. Having the connector separated, move the red lead of the voltmeter from the power wire terminal to the signal wire terminal. The readings of the voltmeter should now be 5 volts. Else fix the opening in the signal wire or alter the PCM.
• If the P2539 error still appears despite all the test, the error might be caused due to faulty FPS although you must not skip then FPS sensor and make sure it is fixed.
• If you are not sure, get guidance from the trained automotive diagnostician. You will have to program or calibrate the PCM to the vehicle and make sure it is fixed properly.

Common Mistakes When Diagnosing the P2539 Code

• You might face problems in the vehicle due to electrical wires.
• Malfunctioning of the powertrain control module (PCM).
• Broken fuel pressure sensor.