OBD Guide

P02B9

Cylinder 8 - Injector Leaking

P02B9 is an OBD-II diagnostic trouble code meaning: Cylinder 8 - Injector Leaking. Common causes: worn injector seals, mechanical damage to the injector. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Misfire in cylinder 8
  • Increased fuel consumption
  • Unstable idle
  • Reduced engine power
  • Smell of gasoline in exhaust fumes

Causes

  • Worn injector seals
  • Mechanical damage to the injector
  • Nozzle contamination
  • Problems with the injector control circuit
  • Malfunction of the engine control unit (ECU)

How to Fix

  1. Check the condition of the injector of cylinder 8
  2. Replace injector seals if necessary
  3. Clean or replace the injector
  4. Check the injector control circuit
  5. If necessary, replace the injector
  6. Reset the error and take a test drive

Related codes

Error P02B9 by Vehicle Brand

FAQ

What does the P02B9 code mean?

P02B9 is an OBD-II diagnostic trouble code that indicates: Cylinder 8 - Injector Leaking

What causes a P02B9 error code?

The most common causes of P02B9 include: Worn injector seals; Mechanical damage to the injector; Nozzle contamination; Problems with the injector control circuit.

How do I fix a P02B9 diagnostic trouble code?

To fix P02B9: Check the condition of the injector of cylinder 8. Replace injector seals if necessary. Clean or replace the injector. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P02B9?

Limited driving only, diagnose soon

How much does it cost to fix P02B9?

The estimated repair cost for P02B9 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat