The Hidden Fault Lurking in Your Engine Code p0304 Will Shock You

Thu, 16 Apr 2026 21:45:16 +0000

The Hidden Fault Lurking in Your Engine Code p0304: Will Shock You If your vehicle’s diagnostic system is throwing code p0304, you may be dealing with a deceptively simple but potentially serious engine malfunction. Known as Cylinder 4 Misfire Detected, p0304 often goes unnoticed until it triggers measurable performance drops, reduced fuel efficiency, or even costly repairs if ignored. But what’s masked beneath this common trouble code? This article uncovers the hidden fault lurking behind p3004 — and why it deserves immediate attention. --- ### What is Code p0304?