Check Nissan DTCs Before Replacement
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Refer to the applicable electronic service manual and follow the diagnostic procedure for these DTCs.
This bulletin applies to 2015-2018 Nissan Altima L33 and 2019 L34 vehicles. If the MIL is on and DTC P219A (air fuel ration imbalance B1) and/or P219B (air fuel ratio imbalance B2) is stored, do not replace the air fuel ratio (A/F) sensor.
Refer to the applicable electronic service manual and follow the diagnostic procedure for these DTCs.