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.