I am looking at a 2001 DII for purchase. I notice it has no secondary air system on the engine. My 2000DII does.

Why doesn't the 2001 have it? Is it one of those emission things you have to have in California but not in other states? (I am in Alaska)

Is it a good thing that the 2001 DII does not have it?

Will I get better mileage w/o secondary air.

It does seem more powerful (peppy) than my 2000 but that's probably because my 2000 has 140,000 miles on it.

I would love to know the answers to some of these questions before I buy it.