Ferrari Mailing List: Dear Diary - hot start troubleshooting continues

[Paul Bennett (pbennett]

>>Question - for DaveH - you would seem to be a (perhaps lone) advocate of
>>brass injectors.  What is your history with this and why brass?

>That is the "upgrade" from Bosch, I don't think they even make the steel
>ones any longer... I had a hot start problem...it did not solve it (it was
>related to a combination of several issues, but the new injectors made my
>328 run Sooooo much better in the upper rpm range.
                                
Tks - Bosch CIS is a giant puzzle and all pieces are appreciated.  
*******Today so far...************
Pressure guage inline between distributor and (warmup) regulator
Idles at 30 psi  cold & hot
Engine stopped pressure holds at 40 psi for hour tending to rule out a leaky 
accumulator or pump check valve.
Now idles at 50 psi.   cold & hot  - why? donno - vacuum leak or electrical 
could have caused the previous 30 psi
Removed electrical connetor to cold start injection - makes no difference to 
starting cold or hot (75ambient)
Removed electrical connetor to warmup regulator  - makes no difference to 
starting cold or hot (75ambient)

Right now I'm thinking I better renew all my vacuum lines 

Also beginning to think the engine just wanted some 'quality' time with me!

**********Questions************

1)  Maybe I was dreaming when I thought the car used to start just as easily 
warm as cold.  
Does everyone normally pump the accelerator for a hot start?

2)  What type of tester is used to measure the air/fuel mixture?   
If it is running rich how can I find out?  ( I live in a non-DEQ area)