high fuel consumption / cold start / rough idle

[yurple at hotmail.com (Mark Malowicki)]

  It's obviously way rich -- even at idle, in my garage, the exhaust smells 
like gas, and it spatters black soot onto the floor.  I don't see any 
visible problems that would cause a vacuum leak, of course that doesn't mean 
I don't have one.

  Would hooking up a fuel pressure gauge tell me if it's the warm-up 
regulator that's bad, to at least start eliminating suspects?  Is that easy 
to do?

  Also, Bosch lists two O2 sensors for my car -- "OE type" #11051, and 
"Universal" #11027.  Any idea what the difference is, other than the 
universal one being $10 cheaper?  Looks like Bosch has a $10 free gas card 
rebate going on now too!



>From: "Eric S" <scirocco@vintagewatercooleds.com>
>To: "Mark Malowicki" <yurple@hotmail.com>
>CC: scirocco@vintagewatercooleds.com, scirocco-l@scirocco.org
>Subject: Re: high fuel consumption / cold start / rough idle
>Date: Wed, 27 Apr 2005 14:34:57 -0600 (MDT)
>
>
>It means that something is wrong with your mixture, and when the system
>goes into default mode, things are better (unhooking the O2).   Your idea
>of looking for leaks is a damn good one...especially anywhere in the
>intake system (aux air regulator included).
>
>But...it is possible that your O2 crapped out...when the O2 is hooked up,
>does the exhuast smell like its running rich? (heavy fuel smell).
>
>--
>Eric
>www.vintagewatercooleds.com