Okay, so where is the MAF and what does it look like? Also, can any of you tell me what engine I have? I know it's 1.8 liter Kompressor but what did Steve mean by 251 engine? Is that what I have?

I don't think I'm done checking vacuum lines yet. The big ones appear to have a disconnect mechanism. How does it work? Do I squeeze it or stretch it or twist it or what?