[V8] TPS & Not-so-smooth Engine

Ed Kellock ekellock at gmail.com
Wed Feb 18 12:55:42 PST 2009


These symptoms sound very familiar.  My 5spd is currently exhibiting very
similar issues.  I have chased vacuum leaks, disconnected the OXS with no
definitive improvement.  I do also have some issues with the instrument
cluster.  When I turn the key off the oil psi gauge pegs to the right.  When
running, the temp & gas gauges are often inop.  I can usually rouse them
with a stout whack on the top of the dash.  When I do so, the seatbelt
warning light comes on briefly.

I'd like to compare notes as we go.  I have had some occasional issues in
the past with one of the reference sensors.  A couple of years ago, it would
not start when it was really hot.  I poured water down behind the driver's
side distributor to resolve that.  I haven't done anything about that
because I don't drive the car often.  

It's been kind of a part time pursuit for me because I usually don't drive
it much, but I would very much like to get it resolved.

Ed

> -----Original Message-----
> From: v8-bounces at audifans.com 
> [mailto:v8-bounces at audifans.com] On Behalf Of Samuel Mrowka
> Sent: Wednesday, February 18, 2009 9:05 AM
> To: v8 at audifans.com
> Subject: [V8] TPS & Not-so-smooth Engine
> 
> 
> Where can you buy a new throttle position sensor? Are they 
> only sold at the dealer?
> 
> Also, what other components should I check for a PT engine with these
> symptoms:
> 
> 1. Greatly increased fuel consumption (only 200 miles a 
> tank). 2. Hesitation, in the 1000 - 2500 RPM range (most 
> noticeable on gear changes), unless the throttle is greatly 
> increased. 3. Stuttering, in the same RPM range, unless the 
> throttle is greatly increased. 4. Often frozen trip 
> computer/MPG indicator. 5. Sometimes, complete power loss 
> unless the throttle is increased slightly. Then, a huge, and 
> sudden, jolt of power when the throttle is increased. This 
> problem often disappears with a restart
> 
> The full-throttle power is there. The car has no issues with 
> starting and also the idle is completely normal.
> 
> Thanks,
> Sam
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