Thanks for the info about the blue sensor. It is now running sweet thanks to your input. Much appreciated.Problem solved.

Regards,

Nick

Wish I could say that is the problem but gaskets are ok.

Thank you, will look into it. will keep you updated.

Thanks for the info about the blue sensor. Can you advise what it does and where I can find it?
Thanks.

Sorry what I meant to say was, the smoke is black not blue (blue being oil rings). It is, therefore, running rich at start up. Prior to this last service - very recent, the car used to hunt - very bad in winter but improved dramatically in the summer.

We removed the ICV with the intention of replacing it. Unfortunately, we were supplied the wrong part. A mate of mine checked the old part and appeared ok. It was washed completely and refitted. The problem persisted but as the vehicle became warn the revs dropped, so appeared that it was working ok...

My wife owns an H reg 316i Automatic. The same problem has persisted for years. On start up the engine hunts and blows blue smoke. I appreciate the vehicle is fuel injected but the only way I can describe the problem is with a carburrated vehicle the choke is left fully out. Before pulling away the ...