P219B code

[Highway]

Got a P219B code today, what should I check first?

 

[ric221]

A trouble code P219B in a Ram truck indicates an air/fuel ratio imbalance in bank 2 of the engine. This means the engine isn't properly mixing air and fuel, and it's likely affecting performance and fuel efficiency. The code can be caused by a variety of issues, including vacuum leaks, fuel pump problems, faulty sensors, or even wiring issues.
Found this by googling the trouble code.

 

[Dredger]

This site should help you:

P219B Bank 2 Air/Fuel Ratio Imbalance

How to easily diagnose, repair, and info on causes of a P219B trouble code that indicates a detected imbalance in bank 2 air/fuel ratio.

www.obd-codes.com