Ferrari Mailing List: Re: Question on Mondial 3.2 electrics problem

[Paul Bennett (pbennett]

>Only happens when HOT, not when driving for 15 minutes around town. It has to 
>be a fast run. After sitting for 50 min or so (cooling down?) it will crank.

My point of reference is a 308 non-lambda injection system.  YMMV

Actually a common problem with several possible causes.  It often stems from
the cold start system pumping gas into a hot engine.   I bought a fuel pressure
guage which helped me to ultimately find my 'thermo-time' switch to be faulty.  

Easy diagnosis leading to an immediate fix for the summer is to disconnect the 
cold start valve by unplugging the electrical plug or removing or re-routing 
the 
vacuum lines (but don't leave them open).  The cold start injection valve is the
uppermost cylinder looking device on the passenger side of the air box.

The thermo-time switch is in the valley under the air box and tough to reach
without removing the air box.   Many have remarked that the air box is
somewhat 'dangerous' to remove as there are spacers involved which like to 
'fall' into the engine.  damn gravity

Other causes of problems can be a leaky accumulator or back pressure valve 
in the fuel pump from holding pressure etc etc etc.