18619/P2187/008583

From Ross-Tech Wiki

18619/P2187/008583 - Bank 1; System too Lean at Idle

Possible Causes

  • Injectors leak/blocked
  • Air Intake Leak (after MAF)
  • Exhaust Leak

Possible Solutions

  • Check Mass Air Flow Sensor (G70)
  • Check Injector(s)
  • Check Fuel Pump
  • Check Activated Charcoal Filter (EVAP) System Solenoid Valve 1 (N80)

Special Notes

  • When found in the NAR 2.0T (BPY) check RVUTB: 01-09-03 or 2018919 for updated Crankcase Breather Valve
    • If the breather valve is faulty, full engine vacuum is typically found when removing the oil cap at idle.
  • 2005-2010 Audi with the following engines, see TSB 01-12-44 or TPI 2015505:
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