Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
LEXUS
Reported code forms P0300
"TT: SOME IS250 AND GS300 VEHICLES MAY EXHIBIT ONE OR MORE OF THE FOLLOWING CONDITIONS: • MIL “ON” DTC P0300, P0301, P0302, P0303, P0304, P0305, AND/OR P0306. • INTERMITTENTLY RUNS ROUGH AFTER COMING TO A STOP WITH THE…
CHEVROLET
Reported code forms P0300
Malfunction Indicator Lamp (MIL) On, Possible P0300, P040B, P041B, P01427 and/or P1429 TDCs Set
CHEVROLET
Reported code forms P0300
Malfunction Indicator Lamp (MIL) On, Possible P0300, P040B, P041B, P1427 and/or P1429 DTCs Set Some customers may comment on a check engine light illuminated. During diagnosis a technician may find one or more of the…
BUICK, CHEVROLET
Reported code forms P0300
This Preliminary Information communication provides information to the technician about vehicles that may have a rough idle or misfire. Technician may find Diagnostic Trouble Code P0300 set in the Engine Control Module.…
DODGE, JEEP
Reported code forms P0300
Flash: Diagnostic And System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. A small number of customers may experience one or more of the…
CADILLAC, CHEVROLET, GMC
Reported code forms P0300
This technical bulletin provides repair information to correct a customer concern of engine misfire/tick noise, Malfunction Indicator Lamp (MIL) On, DTC P0300 set.
CHRYSLER, DODGE
Reported code forms P0300
Flash: 5.7L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience one or…
CHALET, DODGE, RAM
Reported code forms P0300
Flash: MIL Illumination With Transmission And Driveability Improvements This bulletin involves flash reprogramming the Powertrain Control Module (PCM) with new software. The customer may experience a MIL illumination.…
RAM
Reported code forms P0300
Flash: Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with updated software. NOTE: This bulletin contains optional software update that should only be used in…
RAM
Reported code forms P0300
Flash: Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with updated software. During normal diagnostics a technician may find one or more of the following…
RAM
Reported code forms P0300
Flash: 6.4L Diagnostic And System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. Customers may experience a Malfunction Indicator Lamp…
JAGUAR
Reported code forms P0300
"SITUATION: A LOSS OF PERFORMANCE MAY BE EXPERIENCED AND/OR THE ENGINE MALFUNCTION INDICATOR LAMP (MIL) MAY BE ILLUMINATED. UPON DIAGNOSIS, THE TECHNICIAN MAY FIND ONE OR MORE MISFIRE DIAGNOSTIC TROUBLE CODES (DTC…
CHRYSLER, DODGE
Reported code forms P0300
Flash: 6.4L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module with the latest available software. A small number of customers may experience one or more of…
JEEP
Reported code forms P0300
Flash: 6.4L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience a…
CHRYSLER, DODGE
Reported code forms P0300
Flash: 6.4L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module with the latest available software. A small number of customers may experience one or more of…
JEEP
Reported code forms P0300
Flash: 6.4L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience a…
CADILLAC, CHEVROLET, GMC
Reported code forms P0300
15638 - Customer Satisfaction Program. Certain 2016 model year Cadillac Escalade, Escalade ESV, Chevrolet Corvette, GMC Yukon Denali and 2015 Cadillac Escalade ESV, Chevrolet Silverado LD, GMC Sierra LD, and Yukon…
DODGE, JEEP
Reported code forms P0300
Flash: PCM Software Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL)…
DODGE
Reported code forms P0300
Flash: 3.6L Or 2.4L Diagnostic and System Improvements This bulletin involves updating the Powertrain Control Module (PCM) software. The customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon…
LAND ROVER
Reported code forms P0300-00
"SITUATION: THE ENGINE MALFUNCTION INDICATOR LAMP (MIL) MAY BE ILLUMINATED. UPON DIAGNOSIS, THE TECHNICIAN MAY FIND NO HARDWARE FAULT AND ONE OR MORE OF THE FOLLOWING DIAGNOSTIC TROUBLE CODES (DTC ) STORED IN THE ECM:…
RAM
Reported code forms P0300
MIL Illuminates On Rough Roads This bulletin involves reprogramming the Powertrain Control Module (PCM) with updated software. The customer may experience a Malfunction Indicator Lamp (MIL) illumination while driving on…
CADILLAC, CHEVROLET, GMC
Reported code forms P0300
This Preliminary Information communication provides information to the technician about vehicles with misfires or roughness on cold start up. Technician may find a Diagnostic Trouble Code P0300 stored. Technician will…
MAZDA
Reported code forms P0300:00
SOME VEHICLES MAY EXPERIENCE THE CHECK ENGINE LIGHT ON WITH DTC P0300:00, P0301:00, P0302:00, P0303:00 AND/OR P0304:00 STORED IN MEMORY. • P0300:00: RANDOM MISFIRE DETECTED • P0301:00: CYLINDER NO.1 MISFIRE DETECTED •…
SUBARU
Reported code forms P0300
"THIS SERVICE INFORMATION BULLETIN REVIEWS A DESIGN CHANGE TO THE ENGINE WIRING HARNESS TO ELIMINATE IMPROPER DIAGNOSIS OF THE EVAPORATIVE LEAK CHECK MODULE (ELCM) BY THE ECM WHICH COULD SET DIAGNOSTIC TROUBLE CODE…
CADILLAC, CHEVROLET, GMC
Reported code forms P0300
This technical bulletin provides repair information to correct a customer concern of engine misfire/tick noise, Malfunction Indicator Lamp (MIL) On, DTC P0300 set.
CHRYSLER, DODGE
Reported code forms P0300
Flash: 5.7L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience one or…
CADILLAC, CHEVROLET, GMC
Reported code forms P0300
This technical bulletin provides repair information to correct a customer concern of engine misfire/tick noise, Malfunction Indicator Lamp (MIL) On, and/or DTC P0300 set.
MAZDA
Reported code forms P0300:00
SOME VEHICLES MAY EXPERIENCE THE CHECK ENGINE LIGHT ON WITH DTC P0300:00, P0301:00, P0302:00, P0303:00 AND/OR P0304:00 STORED IN MEMORY AND ACCOMPANIED WITH AN INCREASED ENGINE OIL LEVEL. P0300:00: RANDOM MISFIRE…
MAZDA
Reported code forms P0300:00
SOME VEHICLES MAY EXPERIENCE A LACK OF POWER DURING HARD ACCELERATION (APPROX. 6,000 RPM) IN COLD WEATHER CONDITIONS BELOW 32 °F (0 °C). DTCS P0300:00, P0301:00 AND/OR P0302:00 ARE STORED IN MEMORY. • P0300:00: RANDOM…
CHEVROLET
Reported code forms P0300
This Preliminary Information communication provides information to the technician about vehicles that had the Customer Satisfaction Program 15169A and now there is a Service Engine Soon Malfunction Indicator Lamp on.…