Posted on 2/13/2017
If you're the proud owner if a 2006-2010 four-cylinder Legacy, Outback, Impreza or Forester, there is a new alert you should know about so you can bring in your Subaru for a system update. Subaru has issued bulletin WVU-31 about the Engine Control Module (ECM). Here's what you need to know about this alert and what to do if your vehicle is affected. What the WVU-31 bulletin says Most NA (naturally aspirated) four cylinders in the listed model types and years are affected. A defect prevents the front Air/Fuel sensor from reaching optimal temperature early in the start-up cycle. This issue means the emissions expelled are higher than they should be but does not impact the operation of your Subaru. But since it does affect air quality, it's important to correct. The error only affects your vehicle under certain conditions. When you run your Subaru in cold weather or when you turn your engine off and on within a short period, the defect allows higher than expected emissions. When ... read more