P0175 System Too Rich (Bank 2)

Powertrain Severity: Moderate Generic OBD-II

Bank 2 is running rich.

Common causes

  • Leaking injector on bank 2
  • High fuel pressure
  • Faulty MAF sensor

Symptoms

  • Check engine light
  • Fuel smell
  • Poor fuel economy

What to check

  1. Compare trims on both banks
  2. Check fuel pressure
  3. Test injectors

Manufacturers may add their own detail to generic codes. If your vehicle shows a different description for P0175, follow the service information for that make and model.

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