thanks for the tips chrissev! my car is the turbo version. with the cold start pulled out, she seems to idle very well, like a diesel should sound, and with minimal vibrations. when hot, the motor seems to miss at idle with the cold start all the way in, and seems sluggish. The turbo isn't making more than 5-6 psi boost, so the wastegate is probably stuck
and that is definitely not helping any!
I will be looking into an intercooler in the future for sure