Lack of Power

Lack of Power / Hesitation During Acceleration – 2017-2021 Subaru Impreza & 2018-2021 Crosstrek 2.0L MT

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2021 Subaru Impreza

NHTSA ID Number: 10201030 Manufacturer Communication Number: 09-77-21R Summary This bulletin announces the availability of ECM reprograming files to correct a possible limited power and/or hesitation during acceleration at engine speeds of 1500-3500 rpm.   NUMBER: 09-77-21R DATE: 07/28/21 REVISED: 08/19/21 INTRODUCTION: This bulletin announces the availability of ECM reprograming files to correct a possible lack of … Read more

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

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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