P0300 Diagnostic Trouble Code Discussion for April 2020
Multiple Misfire Detected
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| Help Request | Posted | |
| 2013 BMW X3 xDrive28i 2.0L Excessive Emissions, Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire VIN: 5UXWX9C50D P0300: Random/Multiple misfire detected. This one has been no fun, after replacing the timing chain the engine started and idled quite well for around 30mins, upon acceleration the engine misfired on cyl #4, checked coil and plug and found okay, swapped coil and plug with cyl #3 and engine still ... |
April 08, 2020 | |
| 2005 Chevrolet Silverado 2500 HD 6.0L Misfire VIN: 1GCHK29U55 P0300: Multiple Cylinder Misfire Detected. This is my pov. Intermittent #2 misfire. #6 misfires slightly occasionally. The misfires are only felt at idle. Seems to only show on scanner at idle. I replaced the cats due to the high backpressure. Not much power gain like I though it would. The truck d... |
April 08, 2020 | |
| 2010 Acura TL 3.5L Misfire VIN: 19UUA8F59A P0300: random misfire. cleared codes and p0335 has not returned. checked engine vacuum and map pid data at idle 0.96 volts. plugs look good and swapping coils made no difference. plugs did not look like over fueling due to an injector stuck open. i would suspect timing if it was... |
April 21, 2020 | |
| 2005 Buick Century Custom 3.1L Hesitation, Surge, Misfire, MIL Lamp on VIN: 2G4WS52J35 P0300: Engine Misfire Detected. ... followed other posts from this site to try other things, so here goes. Car stores code P0300 random misfire. Looking at scan tool, I can see that #5 has a steady misfire under load only, and a few other cylinders will throw 1 or 2 misfires randomly un... |
April 21, 2020 | |
| 2009 Infiniti G37 X 3.7L Hesitation, Surge VIN: JNKCV61F39 P0300: Random missfire. We scoped both cam sensors and patterns were both good. The scan data with snap-on showes B1 15 degrees and B2 0 degrees. So we tore it down and found a very loose timing chain. The tensioner was out 17mm. We indexed the cams before we took it apart and th... |
April 22, 2020 | |
| 2009 Infiniti G37 X 3.7L Hesitation, Surge VIN: JNKCV61F39 P0300: Random missfire. We scoped both cam sensors and patterns were both good. The scan data with snap-on showes B1 15 degrees and B2 0 degrees. So we tore it down and found a very loose timing chain. The tensioner was out 17mm. We indexed the cams before we took it apart and th... |
April 23, 2020 | |
| 2002 Chevrolet Trailblazer LS 4.2L Misfire VIN: 1GNDS13S62 P0300: Multiple Engine Misfire Detected. I have switched coils and plugs, smoke tested for vacuum leaks, done a compression test running and cranking, spark jumps 25kv and have not had any luck so far. I checked the injectors with my power probe 4 at the pcm and they all give the same readings. I... |
April 27, 2020 | |
| 2002 Chevrolet Trailblazer LS 4.2L Misfire VIN: 1GNDS13S62 P0300: Multiple Engine Misfire Detected. I have switched coils and plugs, smoke tested for vacuum leaks, done a compression test running and cranking, spark jumps 25kv and have not had any luck so far. I checked the injectors with my power probe 4 at the pcm and they all give the same readings. I... |
April 29, 2020 | |
| 2008 Chevrolet Tahoe LTZ 5.3L Misfire VIN: 1GNFK13038 P0300: . ... techs please help!. This 08 Tahoe has an intermittent miss fire that occurs only on light acceleration, and occasionally on deceleration. A ten mile test drive will generally result in a 10 to 15 second long miss fire event that results in a p0300. Th... |
April 29, 2020 | |
| 2011 Chevrolet Silverado 1500 LT 4.8L Misfire P0300: misfire. I have a 2011 Silverado with two codes p0300-p0219B . After scanning the truck I notice #6 cylinder had multiple misfires ,cylinders 3 and 4 also had them but they were very random . The #6 cylinder is the one that's coming up with the most but it isn't co... |
April 29, 2020 | |
| 2003 Chevrolet Silverado 1500 5.3L Surge VIN: 2GCEK19T13 P0300: Multiple Cylinder Misfire Detected. This truck runs poorly hot or cold. Scan data shows misfire on cylinders 7, 8 and occasionally a little on 2. I removed all the plugs and performed the compression test and then gapped the plugs. #8 plug was fouled. I removed the RH fuel rail and swapped #... |
April 30, 2020 | |
| 2008 Chevrolet Tahoe LTZ 5.3L Misfire VIN: 1GNFK13038 P0300: . ... techs please help!. This 08 Tahoe has an intermittent miss fire that occurs only on light acceleration, and occasionally on deceleration. A ten mile test drive will generally result in a 10 to 15 second long miss fire event that results in a p0300. Th... |
April 30, 2020 |
