× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network

P0304 Diagnostic Trouble Code Discussion for February 2017

Cylinder 4 Misfire Detected


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P0304
Help Request Posted
2007 Volvo S80 V8 4.4L Misfire VIN: YV1AH85217
P0304: Cyl 4 misfire. Thank you in advance for your help. 1st time hear had multiple misfire codes (5 differant cyls and general misfire and both lean codes) cleaned maf, replaced plugs and smoke test checked and cleaned coil grounds. Erased codes and did battery reset. 3 days late...
February 08, 2017
2001 Honda CR-V LX 2.0L MIL Lamp on, MIL Flashing VIN: JHLRD18471
P0304: Cylinder 4 Misfire Detected. I'm a Ford tech, but this is my nephews truck, I'm trying to help him out. 2 years ago, I replaced the cylinder head gasket and water pump, had the head rebuilt at a local shop. He brought it back last week with an overheating, using coolant complaint. I repla...
February 10, 2017