Ben Smithers wrote:
> Hey everyone,
>
> I have a 1 litre 1994 fiat uno (with a FIRE engine) and am having
problems
> with it whilst the engine is cold. The best way i can describe the
problem
> is that it is like having a car with a manual choke, and not using the
choke
> at all. While the engine is cold, I have to keep the revs up to prevent
the
> engine cutting out. Once it has warmed up, i have no problems at all.
>
> I have already replaced spark plugs, HT leads, rotor and and the
distributor
> cap. These all needed doing anyway so it seemed a good place to start.
>
> I wonder if anyone else has had this problem and could perhaps suggest
what
> is most likely to be causing the problem.
>
> Any help would be much appreciated.
>
> Thanks
>
> Ben
>
>
If I remember correctly, the Unos of this period were still carb based
but did have a whole load of air correction and ignition advance tubing
connections driven off the manifold via thermal valves connected to
the water/engine block temperature. These used to have a habit of
cracking/splitting and thus allowing air in and changing the engine
operating parameters.
Suggest you carefully check all small bore rubber hoses attached to the
carb, distributor and other places.
Nick /////
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