OBD Guide

P02D2

Cylinder 4 Fuel Injector A Offset Learning At Min Limit

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

Symptoms

  • Unstable engine operation
  • Increased fuel consumption
  • Reduced engine power
  • Misfire in cylinder 4

Causes

  • Cylinder 4 injector is dirty or worn
  • Low fuel pressure
  • Fuel pump malfunction
  • Clogged fuel filter
  • Problems with the injector wiring harness
  • ECU malfunction

How to Fix

  1. Check the condition of the cylinder 4 injector
  2. Check fuel pressure
  3. Replace the fuel filter if necessary
  4. Check the injector wiring harness for opens and shorts
  5. Clean or replace the injector
  6. Check the operation of the fuel pump
  7. If necessary, replace the ECU

Related codes

Error P02D2 by Vehicle Brand