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OBDII Code List

P0174 CHEVROLET - Fuel Trim System Lean Bank 2

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3 What does this mean?

Possible causes

  • Intake air leaks
  • Faulty front heated oxygen sensor
  • Ignition misfiring
  • Faulty fuel injectors
  • Exhaust gas leaks
  • Incorrect fuel pressure
  • Lack of fuel
  • Faulty Mass Air Flow (MAF) sensor
  • Incorrect Positive Crankcase Ventilation (PCV) hose connection
What does this mean?
OBDII Code P0174 Chevrolet - Fuel Trim System Lean Bank 2 -

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Posted and Edit by 06-14-2015