[V8] TPS? - Injector Seals

[Ed Kellock]

The TPS is just below the ISV right up front.

Unplug your OXS and see if the 2k rpm flat spot goes away.

I ran with my TPS unplugged for some reason once and the throttle was hair
trigger at the point where the throttle just opened/closed.  After that
position, there was not unevenness.

Ed

> -----Original Message-----
> From: v8-bounces at audifans.com 
> [mailto:v8-bounces at audifans.com] On Behalf Of S_Matus
> Sent: Monday, March 05, 2007 8:21 AM
> To: V8
> Subject: [V8] TPS? - Injector Seals
> 
> 
> -- TPS?
> 
> I have a deadspot in my throttle just above 2000 rpm.  It 
> will fluctuate the rpms while continuing to depress the 
> pedal.  Then it will resume to normal rpm / throttle position 
> ratio at about 2300.  When the car is in this "dead" position 
> it will buck violently.  If I press pedal quickly I can 
> "overshoot" this dead spot.  It make for interesting driving 
> experience.
> 
> Is this a Throttle Position Sensor?  Where is it located and 
> is it a costly part?
> 
> Please advice that to do?
> 
> -- Injector Seals
> 
> I replaced the Injector Seals (all 16).  I was amazed at the 
> loose fitting injectors in the intake.  There was a large 
> amount of goo in and around the injector opening in the 
> manifold.  This drastically improved the Idle and the 
> perfromance from the engine.  I wish i had done this years 
> ago.  The seals were no longer elastic, and I'm sure it was a 
> vacuum leak.  Guys spend the $16 and replace these seals.
> 
> Thanks,
> Scott
> '91 V8Q 5-speed
> 
> 
>  
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