Condensation / steam from cold start

[CJS-90]

Hello!

I seem to experience quite a lot of steam/condensation from a cold start. It's fine once the car's warmed up, it clears, but I get more than a normal amount from a cold start - to the extent if I put my foot down half way it'll fog the rear window up for a few seconds until it demists itself.

Not sure what could be causing this?

Any help appreciated!

Chris.

 

[traumapat]

Mines the same on a dead cold engine. first 200yds it can mist the window but its fine after.

 

[CJS-90]

Mine does it for at least 5minutes :-(

 

[CJS-90]

I've read that it could be related to overfuelling, as the cat is converting more gases into non-toxic gases. Would this be an indication of an exhaust sensor being faulty and dumping in too much fuel? It might go some way to explaining why I can barely even achieve 28mpg on a 8mile 50mph commute driving like an old man