OBD Guide

P0305

Cylinder 5 Misfire Detected

P0305 is an OBD-II diagnostic trouble code meaning: Cylinder 5 Misfire Detected. Common causes: faulty spark plugs, problems with the ignition coil. Estimated repair cost: $56–222.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–222 (est.)

Symptoms

  • The engine hesitates or runs rough
  • Power Loss
  • Increased fuel consumption
  • Engine vibration
  • Check Engine Light Is On

Causes

  • Faulty spark plugs
  • Problems with the ignition coil
  • Dirty or faulty fuel injectors
  • Low cylinder compression
  • Damaged valves or piston rings
  • Problems with the air intake system

How to Fix

  1. Check the spark plugs and replace if necessary
  2. Check the ignition coil and high voltage wires
  3. Diagnose fuel injectors
  4. Check cylinder compression
  5. Inspect valves and piston rings

Related codes

Error P0305 by Vehicle Brand

FAQ

What does the P0305 code mean?

P0305 is an OBD-II diagnostic trouble code that indicates: Cylinder 5 Misfire Detected

What causes a P0305 error code?

The most common causes of P0305 include: Faulty spark plugs; Problems with the ignition coil; Dirty or faulty fuel injectors; Low cylinder compression.

How do I fix a P0305 diagnostic trouble code?

To fix P0305: Check the spark plugs and replace if necessary. Check the ignition coil and high voltage wires. Diagnose fuel injectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0305?

Limited driving only, diagnose soon

How much does it cost to fix P0305?

The estimated repair cost for P0305 is $56–222. Actual cost depends on your vehicle, location, and labor rates.

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