Emissions question

[86camota]

Okay, first off, I have a 1990 Toyota Corolla Dx/All Trac and its time for emission. Since its an all trac, do I have to do the "dyno" roller test for emissions? The emission places here in Phoenix only have a 2wd roller and I was wondering if I would have to do a "dyno" test or just have them do an idle test?

[SCT]

In Md, they phased out the dyno tests. They only do the tail pipe sniffs now for cars with no OBD. So, it can be only a sniff test. They'll figure it out, I hope.

[SuperRA]

You don't need to worry which test they do, they'll have to figure it out themselves. Most likely it won't be on a dyno and it will be in park or neutral and they rev the engine to certain RPMs.