For Shop Owners

P0173 - Fuel Trim Malfunction 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?

Tech notes

Dirty air filter of faulty air flow sensor are common causes for the P0173 code of the problem.
What does this mean?
Check this articles: diagnostic code p0300 | p0750 | p140 code | acura vtec
Posted and Edit by 06-14-2015