must find a way to get home without fuel regulator:100Q

[Larry C Leung]

Whoops! I guess, since I've been diagnosing a Fuel Pressure Regulator
(Audi's term, everyone else calls them Warm Up Reg's), that's what I 
thought was being talked about. My mistake. Yup, no connection to 
the problem. Sorry if I mislead anyone. 

Happy Holidays!

LL - NY



On Thu, 23 Dec 2004 21:55:44 -0500 Huw Powell <audi at humanspeakers.com>
writes:
> 
> > Current to the FPR only warms up the FPR faster than the block 
> would.
> > Would tend to run richer for longer if the electrical part didn't
> > work or was unplugged. If the mechanical pressure regulation is
> > faulty, nothing you do to the electrical part will help. Dealing 
> with
> > this on my 200Q, but it's not the same P/N as a N/A 2.3.
> 
> Very not the same... it sounds to me like you are describing the 
> warm up
> regulator, which of course is not present on the engine in question. 
>  In
> the letter you were replying to, FPR meant fuel pump relay, not 
> fuel
> pressure regulator.
> 
> >> That rings a bell.  I'm not clear on the details, but I believe 
> the
> >>  fuel pump relay (FPR) is energized when the key is turned to
> >> "start". A bad fuel pump relay would cause a no start condition,
> >> but I don't think it would magically work if you push on ...
> >> whatever it is you are pushing.  Did you try running the car with 
> a
> >> fuse in the FPR?
> 
> Why would you do that?  The fuse is only used to set up diagnostics 
> and 
> whne adjusting timing - it's not "in" the fuel pump circuit.
> 
> -- 
> Huw Powell
> 
> http://www.humanspeakers.com/audi
> 
> http://www.humanthoughts.org/
> 
>