P0300 Diagnostic Trouble Code Discussion for December 2018
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 | |
| 2005 Audi A6 Quattro 3.2L Misfire VIN: WAUDG74F85 P0300: testing and results. We noticed the high fuel pressure drops fast after shutting off the engine--perhaps to 4 bar in less than a minute.. We would like to be sure if one or all the injectors are leaking. We have tried to pressurize the injectors in the car to see if we can see... |
December 13, 2018 | |
| 2009 Jeep Liberty Limited 3.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1J8GN58K39 P0300: Multiple cylinder misfire. Ignition is waste spark(cop on left bank and plug wires to right bank).Has a rough idle and slight miss. Mode 6 shows [...] for #2 and [...] for #4. As stated above, ignition, injector flow, basic and running compression, exhaust backpressure, cam/crank wa... |
December 13, 2018 | |
| 2007 GMC Canyon WT 2.9L Misfire VIN: 1GTCS14927 P0300: Engine Misfire Detected. After installing engine we had a misfire on number 2 cylinder. The misfire will occur about a minute after cold start. The misfire will go away after running about 7 to 10 minutes. It will not come back until a cold restart. Same thing happens the next tim... |
December 14, 2018 | |
| 2009 Jeep Liberty Limited 3.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1J8GN58K39 P0300: Multiple cylinder misfire. Ignition is waste spark(cop on left bank and plug wires to right bank).Has a rough idle and slight miss. Mode 6 shows [...] for #2 and [...] for #4. As stated above, ignition, injector flow, basic and running compression, exhaust backpressure, cam/crank wa... |
December 14, 2018 | |
| 2005 Porsche 911 Carrera 3.6L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on VIN: WP0AA29975 P0300: random misfire detected. Vehicle came in with check engine light on for misfire codes. We checked car for misfires on the counter. No misfires detected. We then checked fuel pressure, it was ok at 3.8 bar. We then checked for camshaft solenoid activation. No stumble when activatin... |
December 14, 2018 | |
| 2007 GMC Canyon WT 2.9L Misfire VIN: 1GTCS14927 P0300: Engine Misfire Detected. After installing engine we had a misfire on number 2 cylinder. The misfire will occur about a minute after cold start. The misfire will go away after running about 7 to 10 minutes. It will not come back until a cold restart. Same thing happens the next tim... |
December 15, 2018 | |
| 2012 Jeep Liberty Sport 3.7L Poor Idle Quality, Hesitation, Surge, Misfire, MIL Lamp on VIN: 1C4PJMAKXC P0300: Random misfire. ... on this for over months. This is the first time I have posted in years... This might be the most confusing vehicle I have ever worked on. Ok here we go. Started with a p2302 code for Ionization and a misfire cylinder #2 replaced coil wire and injector ... |
December 17, 2018 | |
| 2005 Chevrolet Malibu Maxx LS 3.5L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1G1ZT62845 P0300: Multiple Engine Misfire Detected. CUSTOMER COMPLAINT OF ROUGH IDLE AND CK ENGINE LIGHT ON. OUR DIAGNOSTICS WITH TECH2 CONFIRMED A MISSFIRE OCCURING ON #4 CYLINDER AT COLD IDLE AND WARM IDLE.MISS SEEMS TO GO AWAY AS THROTTLE IS APPLIED.FREEZE DATA SHOWS:IGNITION 1 SIGNAL AT 13.8 VOLTS, VEHI... |
December 30, 2018 |
