Engine-CodesAcura – P1304 Acura

P1304 Acura Code - Cylinder Number 4 Random Misfire Detected

Quick Answer

The P1304 diagnostic trouble code for Acura vehicles indicates that a random misfire has been detected in cylinder number 4. Common causes include Faulty spark plugs or ignition coils, Clogged fuel injector, Vacuum leaks in the intake manifold. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1304 Acura indicates Cylinder Number 4 Random Misfire Detected.
Common causes
Common causes include Faulty spark plugs or ignition coils, Clogged fuel injector, Vacuum leaks in the intake manifold.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 05, 2024
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Code P1304 Acura Description

The P1304 diagnostic trouble code for Acura vehicles indicates that a random misfire has been detected in cylinder number 4. This means that the engine's control module has detected a misfire in the fourth cylinder, which can lead to poor engine performance, reduced fuel efficiency, and potential damage to the catalytic converter over time. This issue can be caused by a variety of factors, including fuel system problems, ignition system issues, or mechanical problems within the engine.

OBDII Code P1304 Acura - Cylinder Number 4 Random Misfire Detected
P1304 Acura Code - Cylinder Number 4 Random Misfire Detected

Common Causes of P1304 Acura

  1. Faulty spark plugs or ignition coils
  2. Clogged fuel injector
  3. Vacuum leaks in the intake manifold
  4. Low compression in the fourth cylinder
  5. Ignition timing problems

Symptoms of P1304 Acura

  1. Rough idling or vibrations while the engine is running
  2. Decreased acceleration and power
  3. Engine hesitation or stalling
  4. Increased fuel consumption
  5. Check engine light illuminated on the dashboard

How to Fix P1304 Acura

  1. Diagnose the specific cause of the misfire by performing a thorough inspection of the ignition system, fuel system, and engine components.
  2. Replace faulty spark plugs or ignition coils in cylinder number 4.
  3. Clean or replace the clogged fuel injector.
  4. Repair any vacuum leaks in the intake manifold.
  5. Check and adjust ignition timing as needed.

Cost to Fix P1304 Acura

The cost of repairing a cylinder number 4 random misfire in an Acura vehicle can vary depending on the specific cause of the issue. Typically, replacing spark plugs or ignition coils can cost between $100 and $300, while cleaning or replacing a fuel injector may range from $50 to $200. Labor costs can add an additional $100 to $300, depending on the shop's hourly rates. Overall, the total repair cost for this issue could range from $250 to $800, but it's best to obtain a detailed estimate from a trusted auto repair shop.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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