Troubleshooting the P0304 Code Causes, Symptoms, and Solutions

How to fix P0304 Code: Cylinder 4 Misfire Detected Spark Inline Tester Tool https://amzn.to/465UWj7 An engine misfire is when a cylinder has ... My truck is throwing the P0304 code for misfire on cylinder #4. I went ahead and changed all the spark plugs, wires, distributor cap, rotor, and ignition coil. ... The P0304 error code indicates that the number four cylinder specifically is failing to fire. After running a diagnostic, we have identified the code P0304 - 4th cylinder misfire. After conducting some research I'm finding this a common ... P0304 Code: A Comprehensive Guide to Fixing Cylinder 4 Misfire Description: Welcome to our DIY Car Repair channel! I got code P0304 which is Missfire Cylinder 4. I replaced the plugs and I still got the P0304 code. It starts up rough (cold or hot) and that's where it ... That code has two possibilities: 1. Spark: Bad coil, bad spark plug, poor primary connection to coil, primary wiring issue 2. Inadequate fuel: Fuel filter, ... The whole vehicle started to shake violently, and the engine light came on (flashing). I checked the code and it is a P0304 cylinder 4 misfire. That is the connector for the fuel injector on #4 cylinder. That is the cause of the misfire and your check engine light. Some/ most dealers ... Replace the spark plug (don't forget to check/set the gap. Unplug the wiring harness from the old coil pack and plug in the new coil pack. Push ...