P2697 OBD Error Code: Problem & Solutions

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Is your car having an affected performance issue? Is there black smoke emitting from the car exhaust? Is there a sudden drop in the fuel economy? All these are the indications to the OBD Code P2697 being stored and flashed in the Powertrain Control Module (PCM).OBD code P2697 means Exhaust Aftertreatment Fuel Injector A Circuit/Open Issue.

 

This diagnostic trouble code (DTC) is a generic powertrain code and applies to many OBD-II vehicles (1996-newer). That may include but is not limited to vehicles from VW, Audi, Mercedes Benz, Ford, Mitsubishi, etc. Although generic, the exact repair steps may vary depending on year, make, model and powertrain configuration.

A stored a code P2697 in your diesel powered vehicle means that the powertrain control module (PCM) has detected no voltage in the fuel injector control circuit for the exhaust aftertreatment system.

What causes this problem with the Exhaust Aftertreatment Fuel Injector 'A' Circuit/Open

• Faulty EAS fuel injector
• Bad EAS fuel pressure sensor
• Open or shorted wiring in the EAS fuel injector control circuit
• Less levels of DEF in the EAS reservoir
• Faulty EAS controller/PCM or programming error
• Poor electrical connections and wiring to fuel injector

1. Engine Control Module - The Engine Control Module (also called the Powertrain Control Module or PCM) is the brains of the engine management system. It controls the fuel mixture, ignition timing, variable cam timing and emissions control. Thus check for the faults and replace and reprogram, if needed.
2. Exhaust Gas Recirculation Valve - In internal combustion engines, exhaust gas recirculation (EGR) is a nitrogen oxide (NOx) emissions reduction technique used in petrol/gasoline and diesel engines. EGR works by recirculating a portion of an engine's exhaust gas back to the engine cylinders. Thus, replace the bad valve now!
3. Diesel Exhaust Fluid Pump – For the proper functioning of the transmission system, the diesel exhaust fluid pump needs to work properly. 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. Powertrain Control Module – The PCM works as the brain of the vehicle control system, making all the crucial decisions and ensuring optimal performance from all the components. Thus, faulty PCM can cause performance issues as well as save wrong OBD codes in the system. Thus, replace, repair and reprogram the PCM as required.
5. Automatic Transmission Module – An affected transmission control module can cause transmission slipping, rough shifts, performance issues, affected fuel economy and much more. Thus, it is important to replace it and reprogram it as the required settings.
6. Fuel Injector – The fuel injector is responsible for maintaining optimal levels of the air to fuel ratios in the combustion chambers for the maximum out from the engines. It the fuel injector goes down, it hampers the entire efficiency of the engine. Thus, check and replace the bad injector now!
7. Oxygen Sensor – If the fuel to air ratio is not correct, the engine may work in lean or rich conditions. This not only hampers the performance output, but also affects the fuel economy, exhaust emissions and acceleration. Thus, a faulty oxygen sensor must be replaced as if it important for keeping in check the oxygen levels entering/exiting the engine.

Interested in knowing the symptoms to obd code P2697? If yes, then you have arrived at the right place. We at PartsAvatar have listed out few common symptoms associated with this Position Sensor problem.

Common Symptoms

• Check Engine Light flashing in the display monitor
• ECM indicating the stored error code
• Exponential increase in the fuel consumption pattern
• Rough engine with occasional stalling
• Lack of power and acceleration due to failure of fuel delivery system
• Black or white smoke coming from the tailpipe

Wish to correct this error code with your vehicle? Do you know what all you should do to make your car free from this code? Well, don’t worry! We are here to guide you.

• Replacement of Fuel pressure regulator
• Replacement of Fuel pump
• Replacement of Fuel Supply Control Unit
• Replacement of faulty EAS fuel injectors or other fuel system related sensors
• Repairing or replacing electrical wiring or connectors
• Replacement of DEF pump relay
• Testing the fuel pressure and codes cleared with a scanner or gauge

Parts Avatar Canada is here to solve all your issues related to car parts. We have stocked a wide range of best priced Turbocharger, Fuel Injector, ECM, Diesel Particulate Filter, Exhaust Temperature, PCM, Exhaust System, Oxygen Sensor, Exhaust Gas Temperature and a lot more to help you out in fixing your car.

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

• Take the help of an experienced mechanic who will visually inspecting the fuel system, searching primarily for the leak. Since the leak is considered a significant one, it should be fairly easy to locate.
• Find and freeze frame data with the code. Then, clear the code and take the vehicle on a test drive under the same conditions.
• If the code reappears, perform a visual inspection of the components and its wiring.
• If the wiring is okay, the injector itself will be tested to confirm operation.
• If the EAS fuel injector is functioning properly, the technician must check for other components of the exhaust system for damages and faults.
• The mechanic will repair or replace the part that is causing the large fuel leak, once the source of fuel leak has been found.
• Check for any wiring and harness issues and correct the damaged wiring.
• If there is no problem found, check for the faulty ECU. Although, this fault is very rare but can be a reason for problematic fuel delivery system, thus hampering the engine performance. The ECU needs to be replaced in such condition and has to be reprogrammed to erase any stored faulty error.

Common Mistakes When Diagnosing The P2697 Code

Always take professional help and follow the diagnosis instructions properly before coming to a conclusion or simply replacing any components. Check for the following components and system properly before coming to any conclusion to avoid any hefty repair costs that could have been avoided.

• Check for damaged or worn out wiring and connectors to various components for the fuel delivery system and replace them first
• Check for faulty fuel injector and system
• Inspect for PCM failure that can be corrected with reprogramming
• Check for clogged fuel filters and clean of replace as required