Puff of smoke

I was just wondering if anyone with the Miller engine experiences a puff of whitish/grey smoke when starting the car. It doesn't happen all the time and goes away almost immediately, but I found it to be a little much for exhaust smoke. I took it to the dealer and they told me that it was normal for the miller engine to do that. Any suggestions/opinions?

I had the same problem, and they told me the same thing. Mostly because it needs to be a tad rich to get going.. I noticed it more on the cold days. <br><br>But, I didn't accept that too well, so the special ordered a new ECM from Japan that was suppose to cut it down extensivly. It seems to have worked so far.

I have the same problem. My friend works for mazda. he said all millenia S (supercharged) at one point will give off smoke when u start it because the supercharger burns the Oil. its normal. u should check ur oil every 500 miles cuz it get low from being burnt.

How much did it cost you for the new ECM? Do you have the part # too?<br> I find it embarassing when people see my car puff out clouds of smoke, they think somethings wrong with the car. <br><br>Thanx