Conquering the P0304 Code A Comprehensive Diagnostic and Repair Handbook

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, ... 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 ... Hi All, I'm getting a P0304 code on my 2008 Rav 8. I had recently changed the spark plugs so the spark plugs should be good. A P0304 code indicates a repeating cylinder misfire, which occurs when one of the cylinders does not generate enough compression or spark. In a normal cylinder ... 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. Switch the ignition coil assembly between 4 & 6 and see if you then get a p0306. If so, change the ignition coil. ... P0304 code this past Sunday (4/24). I reset my ECU and the car ran fine until the next day (about 70 miles later) when the code popped up again. The code is showing a misfire on Cylinder 4. The actual code is P0304. I changed the spark plug but that wasn't it. She seems to be running a little rough when ... P0304 is a diagnostic trouble code (DTC) that indicates a misfire in the fourth cylinder of your 2000 VW New Beetle's 2.0L 4-cylinder engine. 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 ...