[V8] Help Diagnosing V8 Fuel Problem...

[Korn, Bob]

I did pull the idle valve and clean the other night and while doing removed
connector from throttle position sensor, connection looked good, sprayed
with contact cleaner and reattached.   Did not remove throttle position
sensor.  Is there anything to clean or ? Inside this sensor? 
I think I have eliminated bad gas.  May have to go back to ignition, I'll
pull caps and inspect, did have a crack on one lead off the right
distributor that caused the last miss/stumble problem, however this feels
different.  I have always had a slight shudder or miss while 1st
accelerating from a stop.  Maybe this is related?
How long do the fuel pressure regulators typically last?  Have about 25K on
this one.
Thanks,

Bob
90V8Q, Pearl, Sport Grays

-----Original Message-----
From: cobram at juno.com [mailto:cobram at juno.com] 
Sent: Wednesday, February 04, 2004 5:10 AM
To: Bob.Korn at Fike.com
Cc: v8 at audifans.com
Subject: Re: [V8] Help Diagnosing V8 Fuel Problem...


I have been having a similar problem on V8Q #2, for quite some time now. 
I found that one of the connectors at the throttle position sensor has
corrosion on it, so much so that cleaning isn't really an option (oxidation
goes deep)....so I just hit the thing with some electrical contact cleaner
when it gets really bad.  Lately it just acts up after shutting off the car
warm, I'll get a few flat spots that are easily corrected with a quick shift
to neutral and balls to the wall throttle application.  After that all is
usually fine.

The connector or the Throttle Position Sensor itself might be a place to
look.  

Fuel pressure can be checked easily enough with gauge, a few adapters and
the relevant pages from the manual.  The diagnostics in the manual are
pretty complete.

BCNU,
http://www.geocities.com/cobramsri/