OBD Guide

P23FD

Cylinder 12 Injector B Air-Fuel Ratio Imbalance

P23FD is an OBD-II diagnostic trouble code meaning: Cylinder 12 Injector B Air-Fuel Ratio Imbalance. Common causes: malfunction of injector b cylinder 12, problems with the injector electrical circuit. Estimated repair cost: $22–111.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$22–111 (est.)

Symptoms

  • Uneven engine operation
  • Increased fuel consumption
  • Reduced engine power
  • Increased emissions of harmful substances
  • Check Engine light comes on

Causes

  • Malfunction of injector B cylinder 12
  • Problems with the injector electrical circuit
  • Dirty or clogged injector
  • Engine control unit malfunction
  • Problems with the fuel system

How to Fix

  1. Check the condition of injector B of cylinder 12
  2. Check the injector electrical circuit for breaks or short circuits
  3. Clean or replace the injector if necessary
  4. Check the operation of the fuel system
  5. If necessary, replace the engine control unit

Related codes

Error P23FD by Vehicle Brand

FAQ

What does the P23FD code mean?

P23FD is an OBD-II diagnostic trouble code that indicates: Cylinder 12 Injector B Air-Fuel Ratio Imbalance

What causes a P23FD error code?

The most common causes of P23FD include: Malfunction of injector B cylinder 12; Problems with the injector electrical circuit; Dirty or clogged injector; Engine control unit malfunction.

How do I fix a P23FD diagnostic trouble code?

To fix P23FD: Check the condition of injector B of cylinder 12. Check the injector electrical circuit for breaks or short circuits. Clean or replace the injector if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P23FD?

Yes, but get it checked soon

How much does it cost to fix P23FD?

The estimated repair cost for P23FD is $22–111. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat