P219A LINCOLN – Bank 1 Air/Fuel Ratio Imbalance

P219A LINCOLN Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light),Excessive Fuel Consumption

P219A LINCOLN Possible Causes

Leaking or contaminated fuel injectors,Low fuel pressure or running out of fuel,Leaking evaporative emission (EVAP) canister purge valve,Exhaust or intake air system leaks,Exhaust gas recirculation (EGR) system,Positive crankcase ventilation (PCV) system is leaking or the valve is stuck open,Ignition system,Incorrectly seated engine oil dipstick, tube or oil fill cap

P219A LINCOLN Description

The air fuel imbalance monitor is designed to detect differences in the air fuel ratio between cylinders per engine bank. The test fails if the air fuel ratio difference per cylinder is greater than a calculated amount.