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P2097 Buick Code - Post Catalyst Fuel Trim System High Limit Bank 1

- Code Popularity: 8,741 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P2097 Buick?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Exhaust system leaks
  • Split, kinked or improperly connected vacuum hoses
  • Insufficient fuel in the tank
  • Leaks in the air induction system and air intake ducts
  • Missing air filter element
  • Cracked evaporative canister
  • Evaporative pipes plugged, obstructed, or leaking
  • Crankcase ventilation system leaking
  • Engine vacuum leaks
  • Low fuel system pressure
  • Contaminated fuel
  • Lean fuel injectors
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How to Fix the DTC P2097 Buick?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2097 Buick code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P2097 Buick Description

Fuel trim bias is used to keep the post catalyst air/fuel ratio within a predetermined range. This allows optimal catalyst efficiency under various operating conditions. The Engine Control Module (ECM) constantly monitors how lean or rich the fuel trim bias is commanded, to determine if the fuel trim bias is greater than a calibrated amount. The Diagnostic Trouble Code (DTC) will be set when the correction limit for a condition causing a rich or lean air/fuel ratio has been exceeded.

OBDII Code P2097 Buick - Post Catalyst Fuel Trim System High Limit Bank 1 - AutoCodes.com
P2097 Buick Code - Post Catalyst Fuel Trim System High Limit Bank 1

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Code P2097 Buick comments

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