P027F

2017-10-10

Description:

  • Cold Start Fuel Injection Quantity A Higher Than Expected

Possible Symptoms:

  • Check the throttle body for any build

  • up or clogging and clean if necessary

  • Inspect the fuel injectors for any clogging or leakage and replace if needed

  • Ensure that the engine coolant temperature sensor is functioning properly and replace if faulty

  • Check the intake air temperature sensor for any issues and replace if necessary

  • Verify that the mass airflow sensor is working correctly and replace if deemed faulty

Possible Causes:

  • Faulty fuel injector

  • Fuel pressure regulator malfunction

  • Clogged or dirty fuel injectors

  • Engine coolant temperature sensor malfunction

  • ECM (engine control module) software issue

Related Parts:

Possible Solutions:

  • Difficulty starting the engine during cold weather

  • Rough idle or stalling when starting the engine

  • Poor fuel efficiency

  • Engine misfires or hesitation during acceleration

  • Check engine light illumination

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