OBD Guide

P2098

Post Catalyst Fuel Trim System Too Lean Bank 2

P2098 is an OBD-II diagnostic trouble code meaning: Post Catalyst Fuel Trim System Too Lean Bank 2. Common causes: air leak in exhaust system, malfunction of the oxygen sensor after the catalyst. Estimated repair cost: $17–111.

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

FAQ

What does the P2098 code mean?

P2098 is an OBD-II diagnostic trouble code that indicates: Post Catalyst Fuel Trim System Too Lean Bank 2

What causes a P2098 error code?

The most common causes of P2098 include: Air leak in exhaust system; Malfunction of the oxygen sensor after the catalyst; Clogged fuel injectors; Low fuel pressure.

How do I fix a P2098 diagnostic trouble code?

To fix P2098: Check the exhaust system for leaks. Diagnose oxygen sensors. Check fuel pressure and condition of injectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2098?

Yes, but get it checked soon

How much does it cost to fix P2098?

The estimated repair cost for P2098 is $17–111. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat