Tell them you want your damn converters if they put them on the bill. I'd find another dealer if it came from that one and they have been through all this before then they're just going to keep running you in circles. 60,000 is kind of early but it could be something simple like spark plugs. at 100,000 my mom's 99 LGT would start to sputter and stall when taking off, turns out it was just bad plugs and the ECU thought it was knocking so it retarded the timing and caused it to stall. I would try the simple things first. fuel filter, plugs, wires, etc.

 

Something doesn't sound up to snuff here. If you have had it in the shop for that long and the problem isn't fixed... Have you paid these guys yet? If so, how much? Also, the only time I see things like this happen it's usually because the person with the problem is young, female, knows little about cars and advertises it; or all of the above. It's hard, but you HAVE to stay on people and leave them VERY little room to bull**** you. Take a couple of hours and check a few groups and do a lot of research on what the problem could be. Talk about that from the git go and ALWAYS request to see the parts they replaced. If there's no core charge, keep it and reference it.

I'm sorry to hear you are having these problems, but it sounds like the shop you're using doesn't know dick about Subie's.

I lucked out. My friends dad has a performance shop 10 mins. from my place so I can throw it on a lift on the weekends. The mechanics are Subie experienced (One of which worked for a Subie dealership for 8 years until 2003). They did the pre-purchase inspection for free and filled me in on some good info, common problems, that helped me deal on my 99 Legacy Limited. If in the Denver Metro area I'd be happy to give you their name.

As for your problem... Like others said, sounds more like IAC. The other option, and wildcard which NOBODY wants to diagnose, is Vacuum system and hoses.

Kinda makes you long for pre-cpu vehicles huh? j/k.

Good luck.