P219A

Showing the 60 model years where P219A appears most; it is on file for 149 in total.

A model year appears here because the code is named in its record, not because every one of these vehicles sets it. Counts are mentions in the federal files, not failure rates — nobody publishes the denominator.

Owners’ own words, one per nameplate, scrubbed of anything identifying. These are unverified reports filed with NHTSA — they are what was said, not a finding that it was true.

Service bulletins and campaigns whose filed summary names P219A. Quoting the document number at a service desk is often the fastest route to a diagnosis someone has already written down.

• 18-038-26 REV. A
  2026-07-29 · Power Train
• Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle exhibit/set SYMPTOM: one or more of the following Diagnostic Trouble Codes (DTCs): â—� P219A - Bank 1 Air-Fuel Ratio Imbalance. â—� P219B - Bank 2 Air-fuel Ratio Imbalance. â—� P032F - Combustion Engine Producing Insufficient Torque. NOTE: This revision has an up
• 18-002-26 REV. B
  2026-06-24 · Power Train
• Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): â—� P219A - Bank 1 Air-Fuel Ratio Imbalance Bank 1. â—� P219B - Bank 2 Air-fuel Ratio Imbalance. NOTE: This revision has an updated and more effective fix for DTC P219B than the prior ve
• 18-038-26
  2026-03-10 · Engine
• Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle exhibit/set **one or more of the following Diagnostic Trouble Codes (DTCs)**: â—� **P219A - Bank 1 Air-Fuel Ratio Imbalance. â—� P219B - Bank 2 Air-fuel Ratio Imbalance.** â—� P032F - Combustion Engine Producing Insufficient Torque. Customers may experience one o
• 18-002-26REVA
  2026-03-10 · Engine
• Technical Service Bulletin (TSB) Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle exhibit/set **one or more of the following Diagnostic Trouble Codes (DTCs)**: â—� **P219A - Bank 1 Air-Fuel Ratio Imbalance. â—� P219B - Bank 2 Air-fuel Ratio Imbalance.** â—� P032F - Combustion Engine Producing Insufficient Torqu
• PIP5929G
  2026-01-22 · Unknown Or Other
• This Preliminary information communicates to the dealers diagnostic tips related to MIL on with P219A.
• PIP5929F
  2025-10-17 · Unknown Or Other
• This Preliminary information communicates to the dealers diagnostic tips related to MIL on with P219A.

A stored code names the test that failed, never the part that caused it. It is the starting point of a diagnosis, not its conclusion — the same code has several possible causes and the cheap one is not always right.