OBD Guide

P02B8

Cylinder 8 - Injector Restricted

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

Symptoms

  • Loss of engine power
  • Uneven engine operation
  • Increased fuel consumption
  • Misfire in cylinder 8

Causes

  • Nozzle clogged
  • Faulty injector solenoid valve
  • Problems with the injector wiring harness
  • Low pressure in the fuel system
  • Engine control unit (ECU) malfunction

How to Fix

  1. Check the condition of the injector of the 8th cylinder
  2. Check the electrical circuit of the injector for open circuit and short circuit.
  3. Check the pressure in the fuel system
  4. Clean or replace the nozzle if necessary
  5. Check and update ECU software

Related codes

Error P02B8 by Vehicle Brand