Is there a way through durametrics to figure out if the actuators are working? My 2009 GTS w/78k mi has long starts, rough idle for a 3-5sec and then clears up. It will sometimes stumble off idle or low rev's or driving off quickly. When you floor it, it sometimes feels sluggish. Seems to be worse when cold out and mainly cold starts. When warm, it runs better.
I did the fuse/fuel pump check and they were fine. I ended up replacing both pumps anyways(for good measure). I logged all the fuel pressures and it all looks good. Low pressure pumps and high pressure pump out puts are go