[s-cars] Fuel Pressure

[Mark Strangways]

Yeah, slow starts it is.
It drops off so fast that I must assume it's going back to the tank, 
otherwise there would be a pool under the car.

Yes, slow starts are a problem. Interestingly enough, very cold starts are 
fine. Go figure.

I am going to pull off the hose to the fuel rail and blow some air down the 
line to see if I can dislodge whatever may be blocking the check valve.

Thanks

Mark S
----- Original Message ----- 
From: <Q at IntendedAcceleration.com>
To: "Jack Gagnon" <bullitt at gwi.net>
Cc: "Mark Strangways" <strangconst at rogers.com>; "S-CAR at audifans.com" 
<S-CAR-List at audifans.com>
Sent: Sunday, May 08, 2005 12:50 AM
Subject: RE: [s-cars] Fuel Pressure


> Mark,
>
> There was no mention of fuel smell, all fuel is assumed contained in the
> system.
>
> The fuel pressure regulator is intended to be a controlled leak to keep 
> the
> pressure from going too high.  Since the engine seems to run O.K. I would 
> think
> it is O.K.
>
> I would suspect the check valve that is screwed into the end of the fuel 
> pump.
>
> The symptoms would be slow to start -- not enough fuel pressure to squirt 
> any
> until the pump builds up the pressure.
>
> Ned
> www.IntendedAcceleration.com
>
>
> Quoting Jack Gagnon <bullitt at gwi.net>:
>
>> Mark,
>>
>> I would check your fuel lines.  My wife's 92 lost pressure between trips 
>> and
>> smelled of fuel occasionally until the lines finally let go enough to 
>> cause
>> marks on the garage floor and a wet spot at the offending fuel line 
>> (ubder
>> the rubber fuel line supports).
>>
>> Jack
>>
>> -----Original Message-----
>> From: s-car-list-bounces at audifans.com
>> [mailto:s-car-list-bounces at audifans.com]On Behalf Of Mark Strangways
>> Sent: Saturday, May 07, 2005 3:22 PM
>> To: S-CAR at audifans.com
>> Subject: [s-cars] Fuel Pressure
>>
>>
>> Oh great Audi list...
>>
>> Riddle me this,
>>
>> Fuel pressure drops off like Pizzo's dates do just after dinner when I 
>> shut
>> down the motor.. What part will I be replacing ?
>>
>> My first guess would be the FPR , second would be fuel pump.
>> Any BTDT's on Fuel pressure drop off ?
>>
>> Mark S
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>
>
>
>