Guide To P004E OBD Error Code Solutions

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Do you remember that when was the last time you washed your car air cleaner? Or when did you last replace your boost sensor? If you are still thinking, then it means that it has been a lot of time since you got them replaced to cleaned. Any such defects can cause the P004E trouble code to appear. The fault code P004E shows that there is some electrical malfunction with the turbocharger.

P004E is a generic OBD trouble code. This code shows that there is some issue with the supercharger boost control “A” Circuit. Now here “A” refers to a specific area of the control circuit. The powertrain control module helps in controlling the boost levels as it totally depends upon the sensor input voltage signals given by the turbocharger. If the PCM notes that the signals given are unusual, then the boost level won’t be controlled. This would give rise to generic code P004E.

What causes this problem with the Turbo/Supercharger Boost Control A Circuit Intermittent Erratic?

• Vacuum leak in the intake manifold can cause this issue
• West gate is stuck open, or stuck closed
• Dirty or defective air cleaner
• Defects in the boost sensor
• Faulty inter cooler
• Loose flange between the turbocharger and the intake pipe
• Turbo failure, which is usually caused by oil leaks or restrictions
• Damaged or loose hardware between the exhaust manifold and the turbocharger
• Defective electrical components in the boost sensor circuit, such as wires, connectors, or fuses

1. Turbocharger/supercharger - Are there some faults in your turbocharger/supercharger? Don’t waste time and get them replaced or else P004E code can turn up.
2. Turbocharger position sensor - OBD Code P004E can appear because of faulty boost pressure/ turbocharger position sensor.
3. Boost control solenoid - Everything is fine with turbocharger/supercharger and still P004E code triggering? Then you must get your boost control solenoid checked.
4. Powertrain Control Module - There can be some issues with the PCM due to which you may see P004E code appearing over and over again. Visit us to buy best quality PCM online.
5. Diagnostic Tool - In order to be that DIY guy, you need to few diagnostic tools to get your car problems pointed out easily. Our diagnostic tools collection will come handy to do so, so why not have a look?

We care for our customers and that’s why we can totally understand your problem. That’s the reason why we have listed out some major symptoms behind the flashing up of OBD Code P004E. They are mentioned here as follows:

Common Symptoms

• You might start seeing an illumination in the check engine light
• Vehicle boost is over or under factory specifications
• Engine power may start decreasing
• Rise in the amount of fuel consumption
• Weird noises coming from the engine bay
• Black smoke coming out of the exhaust pipes

Want to correct the Trouble Code P004E? Read these points mentioned below:

• Fasten the vacuum leaks
• If the air filter is dirty replace it
• The waste gate should be replaced
• Replace intercooler
• Make sure the connections on the intake and exhaust side of the turbo are airtight
• Replace the defective boost sensor
• A faulty turbocharger/supercharger should always be replaced
• Repair or replace bad wiring in the circuit
• Replace PCM (Powertrain Control Module)

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, Solenoid, Supercharger and many more. Now all your problems would vanish within no time.

Have a look at the procedure which would help you to easily diagnose the P004E error code. The main reason behind the flashing up of this code is that the PCM is not receiving signals from the boost control solenoid. The other reason can be that the signal provided from the boost pressure sensor may not be as per the factory specifications.

The first and foremost thing which should be done is to check the circuit by testing the power as well as ground at the solenoid. Then you must carefully check the turbocharger/supercharger by removing the intake to check if there is any sort of damage or debris. If you find any sort of debris, then the best option would be to replace the unit.

Then the pressure sensor should be tested. There must be three wires going through the position sensor: power, ground and signal. The control solenoid should also be tested properly checking its internal resistance with an ohmmeter.