P02FA - OBD Trouble Code

<<See All OBD Codes

The trouble code P02FA can be defined as Diesel Intake Air Flow Position Sensor Min/Max Stop Performance. The intake air (IA) valve is a generally an unlocked valve and is it would only utilize during the regeneration of the DPF. The engine control module controls the position of the IA valve. The IA valve system utilizes a position sensor situated within the valve assembly to monitor the position of the valve. This error code would be set in by the engine control module when then diesel intake air flow position sensor would not be as per the parameters set by the manufacturer. One thing which you must keep in mind that its symptoms as well as causes would surely vary as it depends upon a number of things.

It is always good to learn more! That is the reason why we are here to help you out in gaining more knowledge about the P02FA error code. This diagnostic fault code is a generic powertrain code, which means that it would apply to the OBD-II equipped vehicles. The specific repair steps can vary as it depends upon the vehicle make and model. The diesel intake air flow position sensor (DIAFPS) is generally bolted to the throttle body mounted to the intake manifold or in a tube in the intake air stream. The incoming airflow volume would be converted by the DIAFPS sensor into an electrical signal for the powertrain control module.

What causes this problem with the Diesel Intake Air Flow Position Sensor Min/Max Stop Performance?

• There might be an open in the signal circuit to the DIAFPS sensor
• Some issues related to the short to voltage in the signal circuit to the DIAFPS sensor
• The signal circuit to the DIAFPS sensor might be short to ground
• There can be distorted DIAFPS sensor
• Quirks in the powertrain control module

1. Fuel Injector - Did your mechanic just found out that there is some fault in the Fuel Injector? Buy top notch Fuel Injector from us at economical prices.
2. Auto Transmission Shift Solenoid - A broken Auto Transmission Shift Solenoid can cause a lot of issues. It would be nice if you get it replaced on time.
3. Throttle Body - Everything is fine with the engine control module and still OBD code P02FA flashing? Then there is definitely some fault with the Throttle Body. Get it checked and replace if needed.
4. Powertrain Control Module - PCM is an important car part which should never be neglected. May be there is some fault in it due to which P02FA code may start flashing.
5. Engine Control Module - A faulty Engine Control Module can be troublesome. You can always rely on us as we have best auto parts for our customers.
6. Automatic Transmission Sensor - If everything is alright with PCM, then there is surely some defect in Automatic Transmission Sensor. Get it replaced before the situation gets worse.

Our main motive is to achieve customer satisfaction as for us our customers are everything and that’s why we will help you to diagnose P02FA code by mentioning some major symptoms below:

Common Symptoms

• The service engine soon light can start lighting up
• Less idle speed
• EGR System might not operate
• Issue of no regeneration of the diesel particulate filter to burn off the soot build up

If you wish to correct this fault code, then you have to follow certain steps. Correcting a problem needs your careful attention. Here are some ways with the help of which you will be able to correct the OBD Code P02FA:

• You must fix the defective fuel injector
• Make sure to mend the faulty automatic transmission sensor
• It is essential to restore the flawed DIAFPS sensor
• Repair or replace the quirky auto transmission shift solenoid
• Rehabilitate the defaults in the DIAFPS sensor circuit
• Recondition the non-functioning powertrain control module

However, if you face any issue then we have stocked a wide range of best priced diesel injection, injector tester, fuel injector tester, fuel injection kit, bosch injectors, fuel injector flush, diesel fuel pump and more to help you out in fixing your car.

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

• First of all, you should clear the diagnostic trouble codes from memory by using a scan tool. It is done to see if the P02FA code returns or not. Now if you find out that it is not returning, then there is surely some issue with the connections. If the error code is not returning, then the DIAFPS sensor as well as the related circuits should be inspected.
• Now when the key is turned off, then the electrical connector at the DIAFPS sensor should be disconnected. A Digital Voltmeter black lead should be connected to the signal terminal at the DIAFPS sensor wiring harness connector. Turn the Key ON and engine OFF. The manufacturer specifications should be inspected properly.
• Make sure that the voltmeter should read 5 volts. If not, then the signal or ground wire should be repaired properly and then restore the powertrain control module. If that test has been passed and still P02FA fault code is appearing, then it would indicate some defects in the DIAFCS sensor.
• Faulty PCM would not be able to rule out until the DIAFCS sensor had been restored properly. If you are not sure about it, then you can always take help from the automotive diagnostician. Program the powertrain control module and then it should be installed in the right manner.

Common Mistakes When Diagnosing The P02FA Code

• Non-observance of the powertrain control module
• There can be some faults in the throttle body assembly
• Negligence in the wiring