P2179 - OBD Trouble Code

1. Electronic Control Unit - ECU monitors the temperature differences in the boost converter with the help of the temperature sensors to prevent the converter from overheating and malfunctioning. Thus, replace faulty ECU immediately.
2. Fluid Pump Control Module - If the control module is faulty, the pump will not be able to work properly and will not be able to transfer fluid to the transmission and hydraulic system efficiently. Thus, replacements are in order.
3. Oxygen Sensor - Inspect for faulty O2 sensor that can affect the engine combustion process and the exhaust emissions. Thus, it is important to understand its importance and replace faulty oxygen sensor now!
4. Engine Control Module - ECM failures and faults can be very difficult to find and resolve as these are very rare and might require a complete reprogramming of the system to avoid wrong codes from getting stored in the system, leading to misdiagnosis. Replace it now!
5. Fluid Pump - The fluid pump is usually located in the cover of the transmission. It draws fluid from a pump in the bottom of the transmission and feeds it to the hydraulic system. It also feeds the transmission cooler and the torque converter. Thus, replace faulty fluid pump now!
6. Powertrain Control Module - Faulty PCM can disrupt the normal functioning of the vehicle by affecting the transmission system and the fuel delivery system. This will cause the system to store wrong OBD error and thus can lead to misdiagnosis.
7. Diagnostic Tool - In order to be that DIY guy, you need 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 P2179. They are mentioned here as follows:

Common Symptoms

• Check engine light can start flashing up
• Excessive idle misfires
• Short power output
• It might be very hard to start the card engine

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 P2179:

• Recondition the leakage in the intake manifold
• You must fix the defective EGR valve
• Repair or replace the quirky fuel injector
• Rehabilitate the defaults in the PCM
• The malfunctioning MAP sensor should be repaired or replaced as per the need
• Make sure to mend the faulty O2 sensor
• It is essential to restore the flawed fuel delivery system parts
• Carefully adjust the faults in the MAF sensor
• It is necessary to perform proper service of the unsound gaskets

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Do you wish to diagnose P2179 error code easily? Here are some steps which you should follow in order to diagnose this fault code:

• The mechanic or the technician will use a diagnostic scanner or code reader like DVOM to visually scan for the error codes in the vehicle.
• After performing a careful inspection, every of the stored codes and freeze frame data are retrieved as it can help down the way for further diagnosis process.
• The mechanic will insert a scanner to diagnostic port of the vehicle and recover the codes and freeze frame data.
• If he happens to find any additional error codes, he has to address them as well.
• Once it is done, he has to reset the vehicle, and then test drive to see if the error code appears.
• If the error code does not return, then there can be an erratic condition.
• Then the mechanic has to check the wires, connectors and other electrical components and quickly replace them if he finds them to be damaged or defective.
• Make sure to retest the entire system after repairs are completed so that you achieve success. Crank the engine and examine the vacuum hoses and throttle air inlet tube for leakage in the vacuum.
• Restore or repair the faulty vacuum lines or constituents as per the need. Then the codes should be cleared up and the entire system should be retested to make sure the issue is repaired. Now if all system wiring, connectors, and constituents including the fuses appear to be in good working condition, then a scanner should be connected to the diagnostic connector. After that the mechanic should record all stored codes as well as freeze frame data.
• These details can prove to be very helpful in diagnosing intermittent conditions that may have contributed to this code being stored.
• You should continue by clearing the code and then the vehicle should be taken out for a test drive to see if the code returns or not.
• This will help to decide whether or not the malfunction is intermittent. Now once all the codes have been cleared up, then you should test drive the automobile to see if the code returns.
• If the code is not returning immediately, then you might have an intermittent condition.
• Intermittent conditions can be quite challenging to diagnose and in extreme cases may have to be allowed to worsen before the right diagnosis can even be attempted.
• Now if you find out that the code still exists, then you must start your diagnosis by determining whether the fuel trim level is negative or positive.
• Once it has been fully decided, then you should start by checking the car engine as well as fuel system for proper operation which includes testing fuel pressure as well as checking for leakage in the vacuum.
• If these factors are found to be within needed specifications, then you must start by checking the engine sensors, electrical wiring and connectors as well as the powertrain control module.
• The most common cause of this error code is a failure in the mass air flow sensor, so here have a look at process for diagnosing it.
• Utilize the scanner with the data stream narrowed to include only the mass air flow and then observe the reading of the sensor in grams per second.
• The findings should be compared with the manufacturer’s specified reference value at varying RPMs.
• The throttle is gradually opened in grams per second(read by the PCM as voltage) should increase respectively.
• The mass airflow sensor voltage signal should rise smoothly as the RPM level increases and decrease as RPMs decrease.
• If the actual data does not meet as per the specifications set by the manufacturer, then you must restore the mass air flow sensor with an OEM quality part and it should be retested. If you find out that the mass air flow sensor is checking out, then examine the oxygen sensor voltage using the scanner.
• If there is an indication of the lean exhaust condition, then inspect the el pump to make sure that it is making sufficient pressure and check the leakages in the fuel system.
• Inspect the pressure regulator for internal leakage in the fuel and proper operation.
• The fuel delivery components should be repaired or replaced as per the need and the entire system should be retested to ensure a successful repair has been performed.
• Examine the leakage in the vacuum at vacuum hoses, throttle body gaskets, and intake gaskets.
• Then inspect the EGR valve and gaskets for potential leakage in the vacuum.
• The leakage in the vacuum should be repaired or restore the faulty air intake parts as per the need.
• The codes should be cleared up and the automobile should be taken out for a test drive.
• Inspect the positive crankcase ventilation system for proper operation and restore the PCV valve or hoses as per the need.
• Test the turbo hoses for leaks or the presence of engine oil/fuel.
• If oil is present in the exhaust system, then it might contribute to a fouled oxygen sensor and a resultant fuel trim code.
• You must repair, restore or reconnect turbocharger hoses as per the need, then clear the codes.
• It is always better to test drive theautomobile to ensure that a successful repair has been made.

Common Mistakes When Diagnosing The P2179 Code

• Common mistakes while diagnosing this trouble code are unnecessary and expensive replacements which usually happen when one don’t follow all the steps carefully.
• The most common mistake while diagnosing this code is missing out on diagnosing steps which further leads to the expensive and unnecessary replacements. It is always recommended to seek help of experienced diagnostician to avoid any mistakes.