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P219A Diagnostic Trouble Code Discussion for January 2020

Bank 1 Air/Fuel Ratio Imbalance

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Trouble Ticket Help Requests for DTC P219A
Help Request Posted
2013 Chevrolet Silverado 1500 LT 5.3L MIL Lamp on VIN: 1GCRKSE75D
P219A: Bank 1 Air/Fuel Ratio Imbalance Cylinder to Cylinder. Code P219A will set intermittently. truck runs fine no misfires. switched front oxygen sensors from Bank 1 to Bank 2. swapped fuel injectors from bank 1 to bank 2. alcohol content is 7%, gas test as 15% alcohol. hooked up smoke machine and pressure tested ...
January 31, 2020