Engine Misfire(s) DTCs P0300-P0304, & P0116 – 2020-2022 Subaru Legacy & Outback, 2021-2022 Crosstrek

Subaru Logo

NHTSA ID Number: 10231306 Manufacturer Communication Number: 09-101-23 Summary This bulletin announces availability of reprogramming files developed for the Engine Control Module (ECM) to optimize the fuel injection system’s fuel spray pattern and engine block heater detection.   NUMBER: 09-101-23 DATE: 01/17/23 APPLICABILITY: 2020-22MY Legacy & Outback 2.5L 2021-22MY Crosstrek 2.5L SUBJECT: Engine Misfire(s) DTCs P0300-P0304, & …

Read more

Fuel Injector- Design Change Misfire DTC P030* / Engine Knocking / DTC P219C P219D P219E P219F – 2017-2022 Subaru

2021 Subaru Impreza

NHTSA ID Number: 10249614 Manufacturer Communication Number: 09-81-21R Summary This bulletin announces design changes made to the fuel injector assembly in response to the DTCs listed.   NUMBER: 09-81-21 DATE:  09/24/21 REVISED: 01/22/24 APPLICABILITY: 2018-2021MY Crosstrek 2.0L DI & PHEV 2017-2021MY Impreza 2.0L DI 2021MY Crosstrek 2.5L DI 2019-21MY Forester 2.5L DI 2020-22MY Legacy & Outback 2.5L …

Read more

DTC P0300 Reprogramming File Availability – 2017-2018 Subaru WRX STI

2018 Subaru WRX STI

NHTSA ID Number: 10154410 Manufacturer Communication Number: 11-188-19 Summary This bulletin announces availability of reprogramming files to optimize the ECM on the STI models listed with EJ2.5 engine and manual transmission. These files enhance engine misfire diagnosis to reduce the possibility of an incorrect detection of DTC P0300: RANDOM / MULTIPLE CYLINDER MISFIRE DETECTED. The DTC may …

Read more

DTC P0300 – Reprogramming File Availability – 2017-2020 Subaru BRZ

2020 Subaru BRZ

NHTSA ID Number: 10168604 Manufacturer Communication Number: 11-193-19 Summary This bulletin announces availability of reprogramming files to optimize the Engine Control Module (ECM). These new files will stabilize engine RPM and combustion during warm-up due to slight differences in the air-fuel ratio between cylinders causing DTC P0300 to set.   4 Affected Products Vehicle MAKE MODEL YEAR …

Read more

New Alternator Assembly to Address DTC P0300 – 2014-2016 Subaru Forester

2016 Subaru Forester

NHTSA ID Number: 10187308 Manufacturer Communication Number: 07-112-16R Summary This bulletin provides a procedure for diagnosis and repair of DTC P0300 which may result from fluctuation of the alternator’s current output outside of the specified limits.     NUMBER: 07-112-16R DATE: 08/12/16 REVISED: 08/08/17 APPLICABILITY: 2014-16MY Forester 2.5L Models SUBJECT: New Alternator Assembly to Address DTC P0300 …

Read more