P0300 Diagnostic Trouble Code Discussion for April 2025
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 | |
| 2019 Ram 1500 Rebel 5.7L Misfire VIN: 1C6SRFET4K I have this Ram with 5.7 misfires on #2 and #5 the most, seems more at idle less at higher rpms. I've replaced plugs, switched coils and injectors around, no change. I've checked fuel pressure and fuel, good. Smoked tested for intake leak none found. I've ... |
April 02, 2025 | |
| 2007 Saab 9-3 2.0T 2.0L No Start VIN: YS3FD49YX7 P0300: Multi missfire. ... 1st one i sent to a local sabb shop owner operator used him several times in the past always very fair , he made up for it this time $800 for a used ECM programed , This one i got from an auction ran great i used it for about 6 months , one morning ha... |
April 04, 2025 | |
| 2018 Infiniti QX60 3.5L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on, Lean VIN: 5N1DL0MN9J P0300: Random misfire. Vehicle came in to me several months ago with a rough idle when cold and customer simply wanted spark plugs replaced as it had over 160,000 miles on the original set. Car came back a few weeks later with a bank two lean condition. Replaced multiple vacuum ... |
April 05, 2025 | |
| 2007 Saab 9-3 2.0T 2.0L No Start VIN: YS3FD49YX7 P0300: Multi missfire. ... 1st one i sent to a local sabb shop owner operator used him several times in the past always very fair , he made up for it this time $800 for a used ECM programed , This one i got from an auction ran great i used it for about 6 months , one morning ha... |
April 22, 2025 | |
| 2019 Jeep Wrangler Unlimited Sahara 3.6L Misfire, MIL Lamp on VIN: 1C4HJXEG9K P0300: Multiple cylinder misfire. ... accelerating after the engine is good and hot. It won't do it cold. Sets P0300 only. "Which cylinder is misfiring" shows misfires on 1, 3, & 5 equally at first, then if the counts get high enough, it will stop counting on two of them and on... |
April 28, 2025 |
