DTC P2097: Post Catalyst Fuel Trim System Too Rich Bank 1

2013 Ford Explorer Police Interceptor, FWDSECTION DTC P2097: Post Catalyst Fuel Trim System Too Rich Bank 1
DTC P2097: POST CATALYST FUEL TRIM SYSTEM TOO RICH BANK 1

Description:  The PCM monitors the correction value from downstream heated oxygen sensor (HO2S) as part of the fore-aft oxygen sensor control routine. This DTC sets when the correction value is greater than a calibrated limit.
Possible Causes: 
  • Corrosion
  • Incorrect connections
  • Exhaust leaks
  • Contaminated HO2S
Diagnostic Aids:  Inspect the connectors for signs of damage, water ingress, or corrosion.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST DZ .
RENDER: 1.0x

NO RELATED

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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