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International Automotive Technicians Network

P0300 Diagnostic Trouble Code Discussion for December 2023

Multiple Misfire Detected

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Trouble Ticket Help Requests for DTC P0300
Help Request Posted
2015 Chevrolet Silverado 1500 LT 5.3L Misfire VIN: 3GCUKPEC9F
P0300: . truck came in po307 and common lifter noise i was going to tear down and put lifters and cam?, had covers off and started to see rocker movement.instead i saw no oil off rocker or push rod so decided to replace engine with 60k used ,intermittenly will stil...
December 08, 2023
2002 Chevrolet Express 1500 5.7L Misfire, MIL Lamp on VIN: 1GBFG15RX2
P0300: Multiple Cylinder Misfire Detected. Hey guys engine was replaced at another shop has misfire under load we replaced distributor installed knock sensor they left out did crank relearn with a spark tester in ignition wire under load spark dissapears under load intermittenly on all cylinders po...
December 15, 2023
2015 Chevrolet Express 2500 4.8L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 1GCWGFCF8F
P0300: Engin miss fire detected. The van came in with rough idle, missing, loss of power exhaust leaking at manifolds. We scanned for codes. found the codes listed above. With the high miles did a tune up.I still has same miss fires. Tried swaping plugs, wires and coils from cyl 5 that ha...
December 20, 2023
2012 Porsche Panamera 4 3.6L Poor Idle Quality, Misfire, MIL Lamp on VIN: WP0AA2A79C
P0300: Misfire detected. So the car came into shop scan for codes as listed above . So checked b+ to vvt solenoids all good . Went into to scan tool active testes and commanded vvt solenoids with noir light plugged in and they are pulsing. Dropped dme down load tested all wiring a...
December 20, 2023
2011 Mini Cooper Countryman 1.6L Poor Idle Quality, Misfire, MIL Lamp on VIN: WMWZB3C55B
P0300: Multiple Cylinder MIsfire. Thank you everyone for any input. First off, shouldn't make a difference, but this Mini has a 6 speed manual transmission, IATN didn't give this option when filling out help form. This Mini was towed in, customer says there was a light on the dash when sta...
December 27, 2023