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 – 2014-2022 Subaru
NHTSA ID Number: 10222368 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. NUMBER: 09-74-21R DATE: 05/06/21 REVISED: 09/27/22 APPLICABILITY: 2020-22MY Legacy and Outback 2.5L NA and 2.4L DIT 2018-22MY Crosstrek 2017-22MY Impreza 2019-22MY Forester 2.5 … Read more