[ZX5chica]

Anthony, no word of a lie, when I got rid of my '94 Tercel last summer after buying the Focus, the only thing that helped it pass emissions was running a tank through of the guaranteed to pass stuff.
I had had the e-test done the previous summer, and it barely passed. After I had run through the full tank of gas with the additive in it, it was brought to e-test and passed with flying colours.

I know a lot of you don't like these additive things, and don't believe in them, but it seemed to have done the trick in my case. The only other things I did before giving the car away was to put in a new air filter, recent oil change, and changed the spark plugs (they were always dying on the car... gummed up with carbon sediment), but nothing that I hadn't done before...

Good luck! Call me crazy, but I miss that car sometimes!