986 2.5 manual smokey in cold weather when engine cold

[perleman]

Hi,

My 986 seems quite smokey when the weather is cold - a sort of grey smoke - it's not the initial puff of smoke on starting (OIS), as it carrys on untill the engine is warm, in cold weather. The car isn't getting through any oil as the level doesn't seem to be dropping, and it might be normal, but when I pull up at traffic lights for example, and look in the wing mirrors, there seems to be quite a lot of smoke puffing up from the exhaust. Car runs & performs fine, no error lights.

Is this normal?

[RFM]

Probably vapour, 1 liter fuel gives 1 liter water in the exhaust and in the engine, with cold weather and a cold engine you can see this. Once the exhaust and the engine reach the working temp. it disappears. This is complete normal.

[juniinc]

normal!

Hi,

My 986 seems quite smokey when the weather is cold - a sort of grey smoke - it's not the initial puff of smoke on starting (OIS), as it carrys on untill the engine is warm, in cold weather. The car isn't getting through any oil as the level doesn't seem to be dropping, and it might be normal, but when I pull up at traffic lights for example, and look in the wing mirrors, there seems to be quite a lot of smoke puffing up from the exhaust. Car runs & performs fine, no error lights.

Is this normal?

[perleman]

Thanks guys I'm feeling good now! I wasn't overly concerned as the oil level wasn't dropping but I was wondering if it was burning rich & if that might damage the cat or something.

[Loren]

If the mixture is such that it will damage a cat - then the CEL will flash and the car should not be driven.