[s-cars] the GB CPS how too install?

[Eric Renneisen]

If you put 12V to the pump and don't hear it run, then you've got a pump
problem.  It's just an easy way to rule out the pump.  When mine failed,
it began as a hot start problem and got progressively worse.  This
simple test confirmed it was the pump.

Eric R.
'86 urq
'93 urS

-----Original Message-----
From: Vincent Frégeac [mailto:s.sikss at gmail.com] 
Sent: Tuesday, May 22, 2007 11:31 PM
To: 'Eric Renneisen'; s-car-list at audifans.com
Subject: RE: [s-cars] the GB CPS how too install?


Hi Eric,

What I suspect is a fuel pressure leak that let the 5-10% ethanol we
have in our fuel evaporate when the engine is hot, thus leaving only
vapors to start the engine, something that happened to Paul due to a bad
FPR, with more or less the same symptoms. Running the fuel pump with a
direct 12V would not change the fuel leak behavior or tell me if it's
the pump, the FPR or the check valve... except if I'm missing something
in your tip, which is very possible.



Vincent

-----Message d'origine-----
De : Eric Renneisen [mailto:racingiron at comcast.net] 
Envoyé : 22 mai 2007 20:10
À : 'Vincent Frégeac'; s-car-list at audifans.com
Objet : RE: [s-cars] the GB CPS how too install?

Vincent wrote:
> Regarding my hot start problem, I also suspect
> some fuel pressure issue, either the fuel pump, 
> the check valve or the FPR, hopefully the FPR 
> as it's the easiest to replace but I don't think 
> the S-Bitch will be that kind to me.

If you even suspect a dying fuel pump, why not just run some jumper
wires from the battery back to the fuel pump connector on the top of the
tank just to see if it runs with a direct 12V applied?  It's easy to do
and costs nothing (assuming you've got some lengths of wire laying
about).

Eric R.
'86 urq
'93 urS



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