DTC P0116 and / or Hard Starting in Cold Weather on Vehicles Equipped with Block Heater Accessory – 2015-2019 Subaru Legacy & Outback 2015-2020 WRX STI

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NHTSA ID Number: 10188163 Manufacturer Communication Number: 11-201-21 Summary This bulletin announces availability of reprogramming files to optimize the Engine Control Module (ECM). The new files will address DTC P0116 and hard starting in cold temperature concerns when an accessory engine block heater is utilized.   NUMBER: 11-201-21 DATE: 02/04/21 APPLICABILITY: 2015-19MY Legacy and Outback 3.6L Models … Read more