18619/P2187/008583

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.
• 2008-2013 VW with CCTA or CBFA, TB 10-12-01 or TPI 2025501 has additional CCV testing information:
  • https://static.nhtsa.gov/odi/tsbs/2012/SB-10073981-2280.pdf NHTSA
• 2005-2010 Audi with the following engines, see TSB 01-12-44 or TPI 2015505:
  • BPG - BPY - BWT - CCTA - CDMA
    • https://static.nhtsa.gov/odi/tsbs/2012/SB-10043872-9159.pdf NHTSA