P0300 Diagnostic Trouble Code Discussion for October 2019
Multiple Misfire Detected
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| Help Request | Posted | |
| 2013 Hyundai Genesis Coupe 3.8 Grand Touring 3.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: KMHHU6KJ7D P0300: Multiple cylinder misfire. Car has misfires on all cylinders on bank 1. I have verified that it isnt a clogged converter. Also swapped coils and spark plugs with no change. I notice on live data that the injector pulse width is slightly lower on those cylinders. I also notice that t... |
October 11, 2019 | |
| 1999 Mitsubishi Eclipse RS 2.0L MIL Lamp on VIN: 4A3AK34Y7X P0300: Random Misfire Detected. Having a heck of a time with this one, have replaced every possible part...definitely in need of help |
October 17, 2019 | |
| 2007 Porsche 911 Targa 4S 3.8L Misfire VIN: WP0AA29937 P0300: Random misfire. Hello all out their first off thank you for any help or suggestion and replies. Have a porsche here customer initially brought it in because of check engine light multiple misfires bank 2 specifically was misfiring at 2 coils replaced all coils with porsch... |
October 19, 2019 | |
| 2004 Dodge Ram 1500 ST 5.7L Misfire VIN: 1D7HU18D54 P0300: Multiple cylinder misfire. This truck came in running very poorly. Had all the codes listed. Testing was performed on the EGR and #7 injector. Both were replaced and now it no longer sets codes for them. It still shows misfires on #7 but only after the rpms are raised. If left to id... |
October 29, 2019 | |
| 2009 Lexus LX570 5.7L Misfire VIN: JTJHY00W49 P0300: Random Misfire. ... codes. (P0300 Random misfire, P0305 & P0307 misfire on #5 & 7, P0101 MAF, P0171 & P0174 Lean on Bank 1 & 2, P0430 Catalytic Bank 2.) It runs rough ONLY when cold and runs perfect after it warms up. I thought this was a classic bad MAF a... |
October 30, 2019 |
