Subaru FAQ # 6 The Subaru Dealer just reflashed my Subaru and now it stalls, what’s going on? WVU-31

 
The Subaru Dealer just reflashed my Subaru per WVU-31 and now it stalls, what’s going on?


A. On 2005 and newer models care must be taken  when reflashing the engine control module or disconnecting the battery for any reason.  The most critical part of this is turning the key to the on position prior to starting the vehicle and waiting for the systems to “settle a bit” before starting.  With the WVU-31 its obvious that the guys at the Dealer were in a hurry and in many cases delivering back  vehicles with problems to customers.

If you have a situation where the car dies at idle, or idles erratically after the battery has gone dead, has been replaced or new engine management software was installed understand the base idle “map” must be rebuilt and until this is done it will continue to struggle to idle properly.  I advise turning the key to the on position for 30 seconds, back off, than back to the on position for 30 seconds than finally start the vehicle.

If this happens to you the only thing that will help, is to drive it until it corrects it self.

Here is some information about the WVU-31 Campaign

 

https://allwheeldriveauto.com/subaru-service-program-wvu-31/

 

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