P0300 on the 2020 Toyota 86
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
Nobody has written a description of this code yet.
| T-SB-0156-19 Rev | 2020-08-24. Service bulletin. TSB: Some 2017 - 2020 model year 86 vehicles with automatic transmissions may exhibit one or both of the following conditions: ?MIL ON condition with Diagnostic Trouble Code (DTC) P0300. ?Rough idle at cold start noticeable when engine coolant temperature is around 50°F (10°C). Follow the Repair Procedure in this bulletin to address this condition. |
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| T-SB-0156-19 | 2019-12-16. Service bulletin. TSB: Some 2017 ? 2020 model year 86 vehicles with automatic transmissions may exhibit one or both of the following conditions: ? MIL ON condition with Diagnostic Trouble Code (DTC) P0300. ? rough idle at cold start noticeable when engine coolant temperature is around 50°F (10°C). Follow the Repair Procedure in this bulletin to address this condition. |
2 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.