930 wont start when cold! HELP!!!

[Simon Ravenhill]

Hi guys, I hope someone could tell me why my 930 wont start when cold? I have to keep the revs up between 2-3000rpm until the engine temp starts to warm, then she's fine! The car is running rich, so I guess it was adjusted rich to make it start in the cold! (maybe by the prevoius owner as a quick fix!) My problem is now that i have had it fully serviced, the mixtures have now been adjusted to what they should be. This has made cold starting a right pig! The car is a 87-88 US spec car if that makes any difference,done 50k miles, with the smog unit removed and a de-cat. The car spent most of its life in the sunshine state, then 6 years in Holland so it cant be the British weather can it? Many thanks Simon Ravenhill

Migration info. Legacy thread was 44957

 

[911doctor]

hmm - tricky one, its gonna be a temp sensor of some kind

Migration info. Legacy thread was 44976

 

[Simon Ravenhill]

Now found that when engine is switched off, then left for a minute or so and turned back on revs will rise to 2300rpm! Even though the engine is warm.

Bit of ***** really!


Migration info. Legacy thread was 45024