× 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 June 2024

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
2008 Saturn Sky Red Line 2.0L Misfire, MIL Lamp on VIN: 1G8MG35X18
P0304: Cylinder 4 misfire. The check engine light will flash most of the time. Most of the time you cannot feel a misfire. I got another customer's vehicle that was exactly the same year and engine to compare information. The cam and crank signals are identical. The only thing diffe...
June 20, 2024
2016 Nissan Versa Note SV 1.6L Misfire VIN: 3N1CE2CP1G
P0304: Misfire on Cylinder 4 history. ... check to see if the misfire switched. It did not, also the #3 spark plug was darker then #4. After I cleared the codes it just sets Code P0304 in a short time! I think the clue is in the history codes P219A & P219...
June 26, 2024
2013 GMC Terrain SLT 2.4L Misfire, MIL Lamp on VIN: 2GKALMEK5D
P0304: Cylinder number four misfire. Car was brought to me from another shop after listed repairs. Complaint was Cyl no. four misfire. Scan data showed long term average -30, STFT hovering around 0. Plugs soot fouled.Cleaned plugs, ran car 10 minutes, pulled plugs, no. four covered in oil. Te...
June 28, 2024