OBD Guide

P0314

Single Cylinder Misfire (Cylinder not Specified)

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

Symptoms

  • The engine is rough or unstable
  • Engine performance deterioration
  • Increased fuel consumption
  • Check Engine Light Is On

Causes

  • Spark plug fault
  • Problems with the ignition coil
  • Dirty or faulty injectors
  • Low fuel pressure
  • Compression problems in the cylinder
  • Knock sensor malfunction
  • Problems with the ignition system wiring harness

How to Fix

  1. Check spark plugs and replace if necessary
  2. Check ignition coils and wires
  3. Check fuel pressure and condition of fuel injectors
  4. Check compression in cylinders
  5. Scan the system for other errors
  6. Check the condition of the knock sensor
  7. Check wiring harness for damage

Related codes

Error P0314 by Vehicle Brand