P219B CHEVROLET – Fuel Trim Cylinder Balance Bank 2

 

P219B: DIY Repairing Video Tutorial

https://youtu.be/2DmH7Ijydhk

Check out nonda Auto DIY Center for more engine error code repairing videos.
https://www.youtube.com/playlist?list=PL-Lyko0O0oxHe1AGvzwAz-wokJPXAtW97

 

P219B CHEVROLET Possible Symptoms

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

P219B CHEVROLET 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  

P219B CHEVROLET 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.