P1126 VOLKSWAGEN Long Term Fuel Trim Adjustment Bank 2 System Too Lean

Possible causes

– Faulty HO2S
– Faulty Mass Air Flow Sensor
– High fuel pressure
– Canister purge solenoid stuck open
– HO2S harness is open or shorted
– HO2S circuit poor electrical connection

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)