P0304 Code The Essential Guide to Diagnosis and Repair for DIY Mechanics

Fuel. If all seems well till the code crops up, try a fresh fill up with added Techron a couple of times and see if it clears. Also might be a ... P0304 is for cylinder 4 misfire. That would be my next step. You don't have to change all the ignition coils out. Just the one for cylinder 4. His CEL came on with a P0304 code. He told me he feels the misfire on cold starts, but it drives fine. We replaced the cylinder 4 coil pack ... How to fix a Ford P0304 Code: Cylinder 4 Misfire Detected Spark Inline Tester Tool https://amzn.to/465UWj7 Possible Causes of a Ford P0304 ... The P0304 code will be seen in cars where the ECU has detected that cylinder 4 is not firing properly. The ECU monitors the operation of all cylinders to ensure ... Looks like a misfiring on cylinder #4. Bad coil, spark plug, intake leak? All the usual suspects. I would clear it and see if it comes back. P0304 is defined as “Cylinder 4 Misfire Detected”. It is an OBD-II Diagnostic Trouble Code (DTC) that indicates problems with your car's cylinder number 4. P0304 Code: A Comprehensive Guide to Fixing Cylinder 4 Misfire Description: Welcome to our DIY Car Repair channel! 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 ... 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 ...