Subaru vehicle service campaign: engine control module reprogramming

Bulletin number

WVE-15

Component

Engine and engine cooling: engine

Summary

Subaru vehicle service campaign: engine control module reprogramming. Under certain harsh driving patterns, specifically when repeatedly or continuously operating the engine above the red line (RPM above 6,700), abnormal combustion could occur resulting in serious internal engine damage in the form of broken piston ring lands. (impreza wrx sti models) csc letter was received.

Owners of these vehicles have filed 27 complaints in the engine category.