Mar 2, 2015, 08:13 PM
Last edit by: IB Advertising
See related guides and technical advice from our community experts:
Browse all: Engine and Powertrain
- How to replace throttle position sensor
Step by step instructions for do-it-yourselfers.
Browse all: Engine and Powertrain
Throttle Position Sensor
Thread Starter
Racer
Joined: Jan 2008
Posts: 407
Likes: 0
From: laguna beach ca
Throttle Position Sensor
hi all, does anyone know who sells the Throttle Position Sensor by it self called the dealer i normally use here in cali selman chevy and was told u have to buy the whole throttle body to get the sensor for 500 plus bucks 
checked a few of the online vendors and cant seem to find the part anywhere..thanks for any help.my vette is a 2008 c6 auto.
checked a few of the online vendors and cant seem to find the part anywhere..thanks for any help.my vette is a 2008 c6 auto.
Burning Brakes
Joined: Nov 2005
Posts: 815
Likes: 1
From: Georgetown TX
99% sure your dealer is correct that the TPS is not separately available and that you must purchase a new throttle body assembly.
I believe that the p/n is 12570790 and you can find it new online for around $300.
I believe that the p/n is 12570790 and you can find it new online for around $300.
Drifting
Joined: Jul 2006
Posts: 1,786
Likes: 93
From: Charlotte N.C.
Pro
Joined: Mar 2008
Posts: 633
Likes: 13
From: Hurley New York
Drive by wire.
Most automobiles use a throttle position sensor (TPS) to provide input to traction control, antilock brakes, fuel injection, and other systems, but use a cable to directly connect the pedal with the throttle.
An Electronic throttle control (ETC)-equipped vehicle has no such cable. Instead, the electronic control unit (ECU) determines the required throttle position by calculations from data measured by other sensors such as an accelerator pedal position sensor, engine speed sensor, vehicle speed sensor etc.
The absence of any mechanical linkage between the throttle pedal and the throttle body necessitates the use of a servomotor.
Integral to the servomotor (in this particular instance) is the TPS (Throttle Position Sensor).
Most automobiles use a throttle position sensor (TPS) to provide input to traction control, antilock brakes, fuel injection, and other systems, but use a cable to directly connect the pedal with the throttle.
An Electronic throttle control (ETC)-equipped vehicle has no such cable. Instead, the electronic control unit (ECU) determines the required throttle position by calculations from data measured by other sensors such as an accelerator pedal position sensor, engine speed sensor, vehicle speed sensor etc.
The absence of any mechanical linkage between the throttle pedal and the throttle body necessitates the use of a servomotor.
Integral to the servomotor (in this particular instance) is the TPS (Throttle Position Sensor).
Racer
Joined: Oct 2004
Posts: 393
Likes: 0
From: Williamsburg Virginia
Question
Does your throttle stick in the vicinity if 1500 RPM when you push in your clutch - only to settle down after you stop. Mine does that from time to time. I have replaced the throttle body and the ECM in recent months - neither has fixed the issue. Solution seems to be alluding the techs.
Racer
Joined: Aug 2009
Posts: 359
Likes: 2
You don't necessarily need to replace the TPS. Did you test the TPS? A shop manual will provide the reference voltages. Here is something from You Tube on testing: http://www.youtube.com/watch?v=6eoH4...eature=related
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
5 MOST and 5 LEAST Popular Corvette Model Years in History!
Joe Kucinski
2027 Corvette Buyer's Guide: Everything You Need to Know!
Joe Kucinski
10 Things C8 Corvette Owners Hate (But Won't Tell You)
Joe Kucinski
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!
Brett Foote
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)
Joe Kucinski
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!
Michael S. Palmer
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!
Joe Kucinski
7 Bolt-On Upgrades From Extreme Online Store to Level Up Your C6 Corvette
Pouria Savadkouei
Burning Brakes
Joined: Nov 2005
Posts: 815
Likes: 1
From: Georgetown TX
Does your throttle stick in the vicinity if 1500 RPM when you push in your clutch - only to settle down after you stop. Mine does that from time to time. I have replaced the throttle body and the ECM in recent months - neither has fixed the issue. Solution seems to be alluding the techs.
