P2693 OBD Error Code: Problem & Solutions

<<See All OBD Codes

Is the car engine not performing as per the expectations? Are you noticing affected fuel economy, increased emissions from the tailpipe and Check Engine Light illuminated on the dashboard? This can be an indication of the problem with the fuel injector of the vehicle, resulting in OBD code P2693 getting stored in the Powertrain Control Module (PCM).

The control functions for the fuel injection system are integrated in the engine control module (ECM). Each injector's flow rate information and cylinder position are stored in the memory of both the glow plug control module (GPCM) and the ECM. The fuel injector flow rate programming must be done either when the fuel injector is replaced or the GPCM is replaced.

If the ECM does not communicate, the flow rate information can be retrieved from the GPCM. If both control modules fail to communicate, the fuel injector flow rate information, or injection quantity adjustment (IQA) flow rate numbers, will need to be retrieved from each individual injector.

If the PCM in unable to retrieve information from the cylinder 8 fuel injector, OBD code P2693 gets stored in the system.

What causes this problem with the Cylinder 8 Injector Data Incompatible?

• Defective fuel injector control circuit
• Broken, short or corroded wiring to the control circuits
• Poor electrical connections to the control circuit
• Controller Area Network programming error
• PCM and/or GPCM failure

1. Engine Control Module – ECM faults are rare but can be a big problem as faulty ECM will cause wrong vehicle operations and can also result in wrong OBD codes getting stored in the system which can also cause misdiagnosis. Thus, replace faulty ECM components now!
2. Powertrain Control Module – Check for PCM error which might be due to circuit faults that might require complete replacement and reprogramming. Replace it now!
3. Diagnostic Tools – Buy quality diagnostic tools to check and diagnose OBD code P2693 error with the help of experienced mechanic. Visit us today!
4. Fuel Injection – This system is responsible for supplying fuel with certain pressure, thus assisting the fuel delivery system and engine combustion process. Replace faulty/damaged injectors now!
5. Engine Wiring Harness – Damaged, broken or corroded wiring can cause the fuel delivery system to fail and the components to not work properly. These are easier to check and replace. Purchase new wiring harness and replace the faulty one.
6. Injector Connector – If the fuel injector connector is at fault, the injector will not function properly. This will affect the engine performance and will lead to various OBD codes getting stored in the system.

Willing to know some common symptoms of OBD Code P2693? Your wish is our demand. Have a look at them below:

Common Symptoms

• Reduced fuel economy
• Increased exhaust emissions
• Degrading engine performance
• CEL (Check Engine Light) illuminated
• Engine performing abnormally
• Excessive exhaust smoke on load

We have listed out so ways which would help you to correct the occurrence of OBD Code P2693. They are mentioned here as follows:

• Cylinder 8 fuel injector replacement
• CAN reprogramming
• PCM repair and reprogramming
• Faulty wiring and harness repair or replacement

Don’t get tensed if you are still facing any of these issues as we care for our customers and that’s why we offer a good range of fuel injectors, PCM, glow plug control modules, detective fuel injectors, injectors connectors, damaged injector wiring, connectors, disconnected ground wires to the PCM and a lot more. We are sure that now all your issues would be resolved.

It is essential to diagnose this fault code. Here are some steps which a mechanic should follow for diagnosing the problem that triggered a P2693 code to be stored:

• In diesel engine vehicles, the fuel injectors are embedded by unique calibration identification numbers that helps in uniquely identifying every fuel injector.
• The PCM or CAN (Controller Area Network) for the system have been programmed to identify and respond to each injector separately.
• The CAN controls the vehicle system which reads the input data from various sensors and thus takes appropriate actions.
• If the unique identification number in not recognised by the PCM, such OBD error code may occur. In such a scenario, the PCM might require reprogramming and the unique IDs must be restored in the system.
• Use of a diagnostic scanner, a digital volt/ohmmeter (DVOM), and a source of vehicle specific diagnostic information to diagnose OBD code P2693.
• Check CAN bus system wiring and connector diagram and inspect its resistance to see if it matches with the manufacturer’s specification. If the CAN system output does not match the required readings, it might need replacement or simply might need reprogramming.
• Next, repair or replace burnt or damaged wiring and or connectors related to CAN and faulty fuel injector, sensor and its circuit before doing any further diagnosis.
• Use the DVOM to test for voltage from the EAS fuel injector and check for fluctuations. If the readings are not under specified range, suspect for injector failure and replace it immediately. If everything seems to work fine, then check for faulty PCM and replace or reprogram as required.

Common Mistakes When Diagnosing The P2693 Code

Always check for faulty wiring, and fuses as well as fuel injector parts for error too. Take help of professional mechanic to solve OBD code problem as this will ensure avoidance of misdiagnosis and can also help to reduce the costs associated with the repairs.

• Cylinder 8 fuel injector failure
• Powertrain Control Module (PCM) failure
• Wiring and connector issues in relation to the sensor and circuits