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P0208 Code – What Does It Mean & How To Fix It

This is one of the most frequent OBD2 trouble codes. Read the full article below to know what it means, how to fix it, and what other codes may show related to it.


For the fuel injector circuit for cylinder 8, a DTC code of P0208 is required. The OnBoard Diagnostics II system for detecting anomalies associated with the operation of a fuel injector is based on this code.


The OBDII system of your vehicle shall send DTC code P0208 when it has detected an issue with the fuel injection solenoid for cylinder 8. The codes indicate a potential problem with the electrical circuitry responsible for delivering fuel to cylinder 8 in order to burn it.


The P0208 DTC code may result from a number of sources, including:

  • Faulty Fuel Injector: The fuel injector for cylinder 8 may be malfunctioning, either clogged, stuck open, or closed, disrupting the fuel delivery.
  • Wire or Connector Issues: Damaged or loose fuel injector wires or connectors might result in erratic fuel injection or no injection at all.
  • Injector Circuit Issues: Incorrect fuel delivery may result from issues with the injector circuit, such as excessive resistance or short circuits.
  • Engine Control Module (ECM) Malfunction: In some situations, the ECM may have a problem that results in false signals and impairs the performance of the fuel injectors.


You may encounter one or more of the following symptoms when the P0208 DTC code is activated:

  • Check Engine Light Illumination: The check engine light on your dashboard turning on is the most obvious indication that anything is wrong.
  • Poor Engine Performance: If Cylinder 8 does not receive the proper quantity of gasoline, it may idle poorly, misfire, and have poor engine performance overall.
  • Reduced Fuel Efficiency: Poor fuel atomization from a malfunctioning fuel injector might lead to decreased fuel efficiency.
  • Engine Hesitation: While accelerating or maintaining a constant speed, you can experience an engine hesitancy or stumbling sensation.


An experienced mechanic or technician will Utilize an OBD-II scanner to acquire the P0208 DTC code and examine frozen frame data. Additional testing can include:

  • Fuel Injector Testing: Using various testing techniques, confirm that the fuel injector for cylinder 8 is operational.
  • Wiring Inspection: Examining the fuel injector circuit for obvious damage or loose connections.
  • ECM Testing: Ensuring that the ECM is correctly interpreting signals and commanding the fuel injector as needed.
  • Compression Test: To rule out other engine problems, do a compression test on cylinder 8.

Common mistakes

During diagnosis, various typical errors might happen, including:

  • Ignoring Other Codes: Concentrating only on the P0208 code without taking other closely comparable codes that can offer helpful information into account.
  • Ignoring Wiring Issues: Ignoring the potential for wiring issues, which can frequently be the root of fuel injector circuit issues.
  • Immediate Injector Replacement: If the fuel injector is replaced without first doing thorough testing, the underlying problem can still exist.

How serious is this?

It is important to remember that the P0208 DTC code can cause performance problems and reduce fuel efficiency. Damage to other engine parts can also occur when driving for prolonged periods with malfunctioning fuel injection systems.

What repairs can fix the code?

repair manuals

Depending on the underlying source of the problem, which might be any of the following:

  • Fuel Injector Replacement: If the fuel injector for cylinder 8 is determined to be faulty, it will need to be replaced.
  • Wiring or Connector Repair: Addressing any damaged or loose connections in the fuel injector circuit.
  • ECM Replacement: In extremely unusual circumstances, an ECM module replacement may be required.

Related codes

Codes related to P0208 might include:

  • P0200: Fuel Injector Circuit Malfunction
  • P0201: Injector Circuit/Open – Cylinder 1
  • P0202: Injector Circuit/Open-Cylinder 2


If your check engine light is illuminated and you retrieve a P0208 code, it is crucial to have a qualified mechanic perform a thorough diagnosis to identify the root cause accurately. You will be able to ensure optimum engine performance, fuel efficiency, and longevity of your vehicle by taking action quickly and carrying out the necessary repairs. In order to ensure that your vehicle runs smoothly and reliably for many years to come, it is important to regularly check the engine lights and fix them promptly.

P0208 Code – What Does It Mean & How To Fix It