[V8] Re: Fuel Pressure Regulator-Stumble, miss

[Korn, Bob]

Thanks for the thought, was my first thought as well, did the techron, heet,
two or three tanks of Amoco 93 octane and no difference.  I'm guessing bad
injector or two, fuel pressure regulator, fuel pump or relay.  It really
seems fuel related.  I don't have a pressure gauge,
yet...............another tool buying opportunity!   Read the procedure to
test injectors, somewhat involved, and not sure what function the special
test harnesses have that they describe.  Will have to re-read the procedure
a few times and digest.  Wondering if the seals on the injectors could be
causing the miss or maybe o2 sensor.  Pulled, inspected and cleaned MAP
sensor yesterday, no effect. I still have original speed and reference
sensors, but from previous discussions don't think they would be cause.
Hate to start throwing parts at it..................  I'll check fuel
pressure next. 

Bob


-----Original Message-----
From: Kent McLean [mailto:kentmclean at mindspring.com] 
Sent: Monday, February 09, 2004 7:54 PM
To: v8 at audifans.com
Subject: [V8] Re: Fuel Pressure Regulator-Stumble, miss


"Korn, Bob" <Bob.Korn at Fike.com> wrote:
> I now have a stumble or miss under constant throttle
> position and slight load conditions, most noticeable at 
> highway speeds.

Maybe a touch of water in your gas?  If you live
in a cold climate, condensation could add it to a 
less-than-full tank.  A can of "dry gas" is cheap,
easy, won't hurt, and may cure it.

Kent
'89 200 TQ, "Bad Puppy", V8 wannabe
_______________________________________________
Audifans V8 mailing list
Send posts to: mailto:V8 at audifans.com
Manage your list connection: http://www.audifans.com/mailman/listinfo/v8
Have an Audi V8 question?  Check the Audifans Knowledgebase!
http://www.audi-quattro.org/cgi-bin/twiki/view/Audi/V8
Have a V8 answer? ... Please help others by adding to the KB ... all
contributions welcome!