P2097 on Chevrolet vehicles After the catalyst, the mixture on bank 1 is reading rich

A model year is listed because the code is named in its own record — a bulletin filed against it, or an owner’s complaint about it — not because every one of these vehicles sets it. Counts are documents in NHTSA’s files, not failure rates.

Owners’ own words, scrubbed of anything identifying. Unverified reports filed with NHTSA — what was said, not a finding that it was true.

Bulletins and campaigns Chevrolet filed with NHTSA whose summary names P2097. Quote the document number at the service desk — it is a diagnosis the maker has already written down.

• PIP5445A Service bulletin
  2017-02-08 · Equipment — Other — Owners/Service/Other Manual
• This Preliminary Information communication provides information to the technician about vehicles that may have a Malfunction Indicator Lamp on. Technician may find Diagnostic Trouble Code P2096 or P2097. Technician will need to check the rear Heated Oxygen Sensor circuit resistance, terminal tensions, crimps and locks. Technician will also need to check for any crankcase, induction or exhaust syst
• PIP5445 Service bulletin
  2016-11-21 · Engine And Engine Cooling — Exhaust System
• This Preliminary Information communication provides information to the technician about vehicles that may have a Malfunction Indicator Lamp on. Technician may find Diagnostic Trouble Code P2096 or P2097. Technician will need to check the rear Heated Oxygen Sensor circuit resistance, terminal tensions, crimps and locks. Technician will also need to check for any crankcase, induction or exhaust syst
• PIP5534 Service bulletin
  2017-11-30 · Equipment — Other — Owners/Service/Other Manual
• This Preliminary information communicates additional diagnostics to assist the dealer technician with diagnosing and repairing trouble code P2097.
• GCUS-3-842 Service bulletin
  2017-02-09 · Equipment — Other — Owners/Service/Other Manual
• 17058 - Service Update. The post O2 trim diagnostic may falsely fail causing DTC P2097 to set, commanding a Malfunction Indicator Light (MIL) to illuminate. The vehicle runs and functions as normal with no other symptoms. Reprogram the Drive Motor Power Inverter Module.
• PIP5410C Service bulletin
  2017-02-06 · Electrical System — Software
• This Preliminary Information communication provides information to the technician related to vehicles that have a Malfunction Indicator Lamp on. A technician may find Diagnostic Trouble Code P2097 set as current or history. The technician is advised to install the latest Calibrations into the T6 Power Inverter Module.
• PIP5410B Service bulletin
  2016-11-15 · Electrical System
• This Preliminary Information communication provides information to the technician related to vehicles that have a Malfunction Indicator Lamp on. A technician may find Diagnostic Trouble Code P2097 set as current or history. The technician is advised to install the latest Calibrations into the T6 Power Inverter Module.
• PIP5534A Service bulletin
  2018-10-09 · Engine
• This Preliminary information communicates additional diagnostics to assist the dealer technician with diagnosing and repairing trouble code P2097.
• PIP4964D Service bulletin
  2019-06-18 · Fuel System, Gasoline
• This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on. Technician will find Diagnostic Trouble Code P2097 or P2099. Technician will need to perform an injector balance or Active Fuel Injector Tester prior to going further. Technician will also need to check for a small leak in the exhaust if pu
• PIP4964E Service bulletin
  2023-10-16 · Exterior Lighting
• This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on. Technician will find Diagnostic Trouble Code P2097 or P2099. Technician will need to perform an injector balance or Active Fuel Injector Tester prior to going further. Technician will also need to check for a small leak in the exhaust if pu
• 19NA058 Service bulletin
  2019-03-19 · Engine
• This technical bulletin provides repair information to correct a customer concern of Hesitation or Low Power due to false knock detection and/or Malfunction Indicator Lamp (MIL) Illuminated, DTC P2096 / P2097 Set.
• 19NA058 Service bulletin
  2019-05-21 · Power Train
• This technical bulletin provides repair information to correct a customer concern of Hesitation or Low Power due to false knock detection and/or Malfunction Indicator Lamp (MIL) Illuminated, DTC P2096 / P2097 Set.
• 19NA058 Service bulletin
  2019-09-17 · Electrical System
• This technical bulletin provides repair information to correct a customer concern of Hesitation or Low Power due to false knock detection and/or Malfunction Indicator Lamp (MIL) Illuminated, DTC P2096 / P2097 Set.

A stored code names the test that failed, never the part that caused it. The record above is what Chevrolet and its owners have filed about it; the code’s page across every make has the whole file.