Diagnostic Tips July 28, 2021
Cleaning Procedure for Carbon Deposit Removal to Address Engine Misfire DTCs, Black Smoke from the Exhaust, Lack of Power, Knocking (Ping) and / or Rough Idle Concerns – 2014-2021 Subaru
NHTSA ID Number: 10194830 Manufacturer Communication Number: 09-74-21R Summary This bulletin provides updated parts information and a service procedure to follow for removing accumulated carbon deposits from fuel injectors and internal engine components. 32 Affected Products Vehicles MAKE MODEL YEAR SUBARU ASCENT 2019-2021 SUBARU CROSSTREK 2017-2021 SUBARU FORESTER 2014-2021 SUBARU IMPREZA 2017-2021 SUBARU LEGACY 2020-2021 SUBARU OUTBACK 2020-2021 SUBARU WRX …
