[urq] Cold start valve ?

[DGraber460 at aol.com]

In a message dated 1/26/2007 11:45:44 A.M. Mountain Standard Time,  
Steven.Buchholz at kla-tencor.com writes:

The urq  is *very* sensitive to battery voltage when cranking ... if you 
think the  battery was low that may be all it was.  The ECU is what fires the  
ignition coil based on inputs from the two flywheel sensors and the Hall  Sender 
on the distributor.  

I've always been of a mind that the  CSV does more harm than good when 
starting ... especially when the "Hot Start  Pulse Relay" starts clicking on and 
off.  Of course, I've never had to  start my car at -20C ... I'd bet the CSV is 
only helping  there!



Interesting that you post what I have felt for some time although  
unsubstantiated till now.
I have my CSV hard wired to a manual switch that I use to cure vapor lock  in 
summer. (very effective FWIW) It does not fire unless I turn it on.
My car normally starts better without it, and I can activate it when needed  
such as low outside temps.
Another data point is I have modified my fuel distributor to be able to  flow 
more at full throttle.
 
Dennis
Denver