Cold starts and throttle w/ '98 2.5GT

[dutchmafioso]

For some reason, my '98 Legacy GT accelerates relatively unpredictably just before warming up. The throttle almost jackrabbits sometimes, and if a quick dose of gas is needed to avoid an accident, I may have to punch the clutch to push the gasoline into the engine. The car accelerates smoothly once the engine has warmed.

 

I told my dealership about this issue (thinking it was a fuel injection problem), but they didn't find/fix anything.

 

Do your Legacies behave similarly when cold? If so, why? If not, what do y'all think could be wrong here?

 

Thanks!