Reduced Engine Performance at High Ambient Temperatures – 2015-2016 Subaru STI
NUMBER: 11-163-16 DATE: 04-15-16 APPLICABILITY: 2015-16MY STI Models SUBJECT: Reduced Engine Performance at High Ambient Temperatures INTRODUCTION This bulletin announces availability of reprogramming files for optimization of the ECM. The files will address customer concerns of a lack of engine power output resulting from reduced turbocharger boost at high ambient temperatures while using 91 octane … Read more