OBD Guide

P2297

O2 Sensor Out of Range During Deceleration Bank 1 Sensor 1

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Increased fuel consumption
  • Unstable engine idling
  • Loss of power during acceleration
  • Check Engine light comes on
  • Dips when braking

Causes

  • Malfunction of the oxygen sensor (lambda probe)
  • Open or short circuit in the sensor circuit
  • Sensor Grounding Problems
  • Engine vacuum leak
  • Sensor contamination due to oil or antifreeze leakage

How to Fix

  1. Check the condition and connection of the oxygen sensor
  2. Check the integrity of wires and connectors
  3. Test sensor resistance and voltage
  4. Clean or replace sensor if necessary
  5. Check engine for vacuum leaks

Related codes

Error P2297 by Vehicle Brand