987 · Fuel

P2188

System Too Rich at Idle (Bank 1)

MED SEVERITY

Bank 1 fuel mixture is too rich at idle.

SYMPTOMS

  • Check-engine light
  • Rough idle
  • Fuel smell

LIKELY CAUSES

  • Leaking injector
  • High fuel pressure
  • Faulty MAF

DIAGNOSIS STEPS

  • Read idle fuel trims
  • Check fuel pressure
  • Inspect injectors

RELATED PARTS

  • Fuel injectors
  • MAF sensor
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