2010 Legacy BR9 startup

[axle117]

About a year ago my wife and I bought a 2010 BR9 as a family wagon to cart round the baby gear and also the dog.

As its predominantly her car, I don't drive it a lot but i have noticed that on the first start after it has been sitting for a while it seems to heavily over fuel to the point of almost stalling (sounds like a diesel engine).

When this happens the exhaust releases unburnt fuel.  It calms straight down to a perfect idle when selecting a gear out of park.

 

We are the first owners from it landing from Japan.

Is there an ECU flash that can be done to eliminate this dreadful start up feature? 

Car is still under a warranty just for interest sake.

 

Cheers

[pedro]

Hi..are you using throttle to start ?

Car should start almost instantly with no throttle..

[axle117]

Nope, no throttle. This is purely the car doing it itself. 

[Subirex Automotive]

does your car have secondary air valve? its probably that making the noise one first start-ups. as for nearly stalling that could be related to this or something else. on cold start ups the the fuel injection rate is higher and the air pumps pushes more air in the emission system to get rid of that unburnt fuel thus you smell that extra fuel.