OBD Guide

P2098

Post Catalyst Fuel Trim System Too Lean Bank 2

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–111 (est.)

Symptoms

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

Causes

  • Air leak in exhaust system
  • Malfunction of the oxygen sensor after the catalyst
  • Clogged fuel injectors
  • Low fuel pressure
  • Damage to the catalytic converter

How to Fix

  1. Check the exhaust system for leaks
  2. Diagnose oxygen sensors
  3. Check fuel pressure and condition of injectors
  4. Inspect the catalytic converter
  5. Check the wiring harness to the oxygen sensors

Related codes

Error P2098 by Vehicle Brand