[mo_focus]

what was the conditions for testing?

I usually do the following before i go test the car.

1- Put 92 Oct. Gas
2- Change all the filters and add all the additives you had mentioned.
3- Make sure you go on the highway and try to clean/warm up the car before the testing. also try to clean the pipes :)

As you said its the wifes car and usually they just stick with the speed limit and don't rev the engine at all. And after so much driving i bet most of the pipes are just coverd in cunk and crap. Just rev it up a bit and hopefully you won't blow the engine.

Also try doing some google on this, I know tercels had some problems with emission from what my dad was saying.