OBD Guide

P01D2

Cylinder 4 Injection Timing Performance - Over Advanced

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

Symptoms

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

Causes

  • Malfunction of the fuel injector of cylinder 4
  • Problems with sensors (mass air flow sensor, crankshaft position sensor, camshaft position sensor)
  • Faulty injector wiring harness
  • Problems with the engine ECU

How to Fix

  1. Check the condition of the fuel injector of cylinder 4
  2. Check sensors that affect injection timing
  3. Check the injector wiring harness for opens and shorts
  4. If necessary, replace the injector or other faulty components
  5. Reset error and test drive

Related codes

Error P01D2 by Vehicle Brand