Conquering the P0304 Code A Comprehensive Guide to Engine Misfire Diagnostics and Repairs

After running a diagnostic, we have identified the code P0304 - 4th cylinder misfire. After conducting some research I'm finding this a common ... hi to all i have a 2002 VW Passat estate 2.0. i recently had the code p0304 come up misfire cylinder 4 and replaced the plug furthest away ... Defective AA head on 3.6L motors built before 7/26/12. Inevitable failure but good news for you is that warranty is extended to 150,000 miles as ... Initial possibilities off the top of my head: Bad coil pack, Bad spark plug, Bad injector. If it is under warranty have it towed to the dealer. The P0304 code can be attributed to 1) Bad spark plugs 2) Bad Ignition Coils 3) Air Intake Leakage 4) Cylinder vacuum leaks. 5) Head Gasket leaks. yes, its actually what i was thinking, its failing under heat. Typically you're right the whole coil fails but i've seen weirder things happen. And switch the ignition coil from cyl4 to cyl2. Still getting misfire on CYL4 ! the car runs normal when i erase code P0304 but then it comes ... P0304 Code: A Comprehensive Guide to Fixing Cylinder 4 Misfire Description: Welcome to our DIY Car Repair channel! 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 ... Check the wires and the pigtail that goes to the coil pack. I've seen this happen from a wire cracking close to the pigtail (not noticeable ...