I was wondering how to tell them apart.  I didn't see anything about 
     the correct voltages, etc on the aux air reg. If neither of these 
     lines drop voltage after 12 seconds I guess the thermo-time sensor is 
     kaput.  I think the one I have came from a burned up engine - so I 
     don't know if it works or not. 
     
     
     Have a great weekend all !
     
     john
     

______________________________ Reply Separator _________________________________
Subject: Re: 82 fi electrical question
Author:  jackr@fortnet.org at NBS-Internet-Gateway
Date:    2/9/96 4:28 PM

John,
You've obviously switched the two leads.  The aux air reg gets 12V from 
the time the engine is switched on to the time it's switched off.  The 
cold start valve only gets voltage when the starter is engaged.
     
To check this, just pull the connector to the cold start valve and start 
the engine.  If it purrs like a kitten then the problem's solved.  
     
Btw, running the engine with the connector off won't hurt the brain.  
It's a straight 12V connect off a relay. 
     
Jack