× 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

P0300 Diagnostic Trouble Code Discussion for April 2021

Multiple 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 P0300
Help Request Posted
2012 Hyundai Veracruz GLS 3.8L Misfire, MIL Lamp on VIN: KM8NU4CC5C
P0300: Random Misfire. Need someone know the Hyundai ECM diagnose strategy and responses. This vehicle came from the other shop. They replaced all the spark plugs and some ignition coils, but still have the codes for misfiring. Only in the cold start, the data shows small ...
April 23, 2021
2010 Dodge Avenger R/T 2.4L MIL Lamp on, Reduced power mode VIN: 1B3CC5FB3A
P0300: Multiple misfire. ... lack of power. When checked, only P0300 code. Whenever you start it, it runs fine. Check engine light sometimes flashes, but not always, with only that single code, even do the car feels prefectly fine. After driving, computer dissables cylinders 1 and...
April 27, 2021
2016 Chevrolet Cruze Limited LTZ 1.4L Misfire, MIL Lamp on VIN: 1G1PG5SB1G
P0300: misfire. ... regarding this car. Vehicle arrived with misfire on #1 cylinder a month ago. After diagnosing original issue ignition coil was melted on #1 cylinder. Pulled spark plugs and replaced and also replaced ignition coil. This did not fix the problem - still ...
April 28, 2021
2007 Nissan Altima S 2.5L Poor Idle Quality, MIL Lamp on VIN: 1N4AL21E47
P0300: Multiple Misfire Detected. ... drives fine other wise according to him. Pull above codes. VVt is full on 42 degrees, unplugging solenoid and engine idles fine. Run diagnostics for P0075 and everything checks fine? KOEO 12 at black/red and ground at red/blue. Test resistance on sole...
April 28, 2021
2010 Jeep Patriot Sport 2.4L Misfire VIN: 1J4NT2GB6A
P0300: Random misfire. ... says the engine is misfiring on cylinders 1 and 4, but it's running fine. Then because the PCM "thinks" it's misfiring, it shuts the injectors off on those cylinders, and then the engine actually starts to misfire. Turn the car off, restart it,...
April 29, 2021
2011 Buick Enclave CXL 3.6L Misfire, MIL Lamp on VIN: 5GAKVBED9B
P0300: . Vehicle came in with codes P0306 and P0300. Hard misfire on cylinder 6. Customer has replaced his own spark plugs. I swapped coils and plugs from cylinder 2 to cylinder 6 to see if the misfire moved. Misfire still on cylinder 6. Compression test shows 16...
April 30, 2021