OBD Guide

P2276

O2 Sensor Signal Biased/Stuck Lean Bank 2 Sensor 3

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

Symptoms

  • Increased fuel consumption
  • Check Engine light comes on
  • Reduced engine power
  • Unstable engine idling
  • Increased emissions

Causes

  • Bank 2 Sensor 3 Oxygen Sensor Malfunction
  • Air leak in exhaust system
  • Problems with the fuel system (low fuel pressure)
  • Sensor is dirty or damaged
  • Problems with sensor wiring or connectors

How to Fix

  1. Check the integrity of the sensor wiring and connectors
  2. Check the exhaust system for air leaks
  3. Check fuel pressure and condition of fuel filter
  4. Replace Bank 2 Sensor 3 oxygen sensor if necessary
  5. Clear the error and check if the code is returned

Related codes

Error P2276 by Vehicle Brand