I have the same problem, My car's rpm's slowly bounce between 500-1000 rpms at idle, sometimes. but 85% of the time it's okay. Why? I have had all 4 O2 sesors replaced, and no CEL has come on. Is this a problem associated with TH? I haven't done the easy fit b/c I am engine shy as well, but I can wax on, wax off like the Karate Kid!
