P20F6 OBD Error Code: Problem & Solutions

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The trouble code P20F6 can be elucidated as Reductant Injection Valve Stuck Open Bank 1 Unit 1. Did you just see check engine light flashing on your dashboard? Get your car inspected from a mechanic or else P20F6 fault code would be stored in your powertrain control module.

This trouble code is generic, which would mean that it can apply to all the vehicles which are equipped with the OBD-II or the vehicles which are made since 1996 up to the present. The specifications on the definition, the troubleshooting steps as well as repairs can always vary from one vehicle make to another. The reductant injection valve is being monitored by the engine control module. This trouble code would be set by the ECM when the reductant injection valve control circuit would not be as per the specifications set by the manufacturer.

What causes this problem with the Reductant Injection Valve Stuck Open Bank 1 Unit 1?

• There can be inoperative reductant injection valve
• The reductant injection valve control circuit might be unlocked
• Too little DEF in the reservoir
• Malfunctioning SCR controller/PCM or programming error

1. Engine Control Module - There can be some engine performance issues due to faulty engine control module. If the ECM fails or has any problems it can lead to performance issues with the vehicle like misfires, hesitation, loss of power, and sometimes even decreased fuel economy.
2. Exhaust Gas Recirculation Valve - Did you just see check engine light flashing on your dashboard? If the computer would detect some fault with the automobile’s EGR valve circuit, then it would set up the check engine light so that the driver is notified about the fault. Don’t waste time and get them replaced or else this fault code can turn up.
3. Diesel Exhaust Fluid Pump - The diesel exhaust fluid pump needs to work properly if the transmission system has to perform. If it is not functioning, the transmission may slip and cause harsh shifts too. Thus replace faulty pump now and buy a new one from us!
4. Fuel Injector - Facing some issues in starting your vehicle? Poor idle issues? Failed emissions? These are all the symptoms of bad, faulty, leaking and clogged fuel injectors. It would be a good decision to replace your defective fuel injector with a new one online.
5. Powertrain Control Module - PCM stands for powertrain control module. It is a car part, a control unit which is utilized on motor vehicles. It is generally a combined control unit, consisting of the engine control unit (ECU) and the transmission control unit (TCU).
6. Electronic Control Unit - If your automobile's check engine light remains on constantly, and never goes off, there's a good chance that your vehicle has a damaged electronic control unit. There are a lot of reasons why a car's check engine light will remain on. The most common reason is a defective ECU.
7. Diagnostic Tools - It is always advisable to use correct tools and equipment while resolving any OBD code issue as even small mistakes can lead to wrong diagnosis. Thus, always take help from a professional who has the knowledge and experience to such tools in efficient manner. Buy new quality diagnostic tools from us today!

You might be thinking that how would you diagnose these problems? We at Parts Avatar Canada would help you diagnose the major symptoms easily.

Common Symptoms

• The engine performance might be reduced
• Too much black smoke from vehicle exhaust
• Diminishing fuel mileage
• Appearance of some other SCR related codes

Looking out for some ways with the help of which you can correct this fault code? Then you have arrived at the correct place. We are here to help you out, so you must check out the steps mentioned below as follows:

• Repair or replace the quirky ECM
• You must fix the defective SCR controller/PCM or programming error
• It is essential to restore the flawed reductant injection valve control circuit
• The reductant injection valve should be restored to working order

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, exhaust system parts, exhaust gas temperature sensor, reductant injection valve, dpf system parts 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:

After verifying the P20F6 code with an OBD-II scanner, the mechanic should begin with a visual inspection of all electrical components, especially looking for some issues in the reductant injection valve control circuit. Any issues should be repaired, and the code should be cleared from the system. If the code reappears after a retest, the mechanic should then move on to performing voltage tests and resistance tests on the sensor, and comparing the information to the manufacturer’s specifications. If the readings are within the correct limits, then the sensor needs to be replaced. However, if the readings are not within the correct limits, then the issue lies elsewhere. The mechanic should continue checking each possible cause, clearing the code and retesting the system after each attempt, to be sure that the correct solution is found.

Common Mistakes When Diagnosing The P20F6 Code

• Powertrain control module might start failing
• Some issues related to the DEF injector
• Issues with the car wiring