Gas Pedal Potentiometer(s)
Racer
Joined: Apr 2008
Posts: 373
Likes: 2
From: White Plains NY
that's the best that I can do.
BTW why do you want to Know?
Mike
Melting Slicks
Joined: Sep 2007
Posts: 2,597
Likes: 3
From: READING PA
St. Jude Donor '08-'09-'10
There is only one " TPS"
OK I looked for about a 1/2 hr in the manual and came up w/ this; there are 2 throttle senors in the gas pedal. sensor 1: has a normal range 4.75- 0.35 V Sensor 2: 0.25-4.59v these numbers are under various engine running conditions. there is also a 5v reference point.
that's the best that I can do.
BTW why do you want to Know?
Mike
that's the best that I can do.
BTW why do you want to Know?
Mike
represents the position of the butterfly being fully closed to full open.
You can monitor this with a good SCAN TOOL like the predator, HP TUNERS or other CORVETTE DESIGNATED ROOLS. You dont even need the motor running to run the voltage up and down . A great way to check if there is a dead spot if the engine is doing something like stumblimg or just not followowing the pedal 100%.
Safety Car
Joined: Sep 2008
Posts: 4,296
Likes: 156
From: Location: Location: kAnSaS
the job of the TPS on the butterfly is to tell the ECM how far the throttle plate is open.
You also have a throttle "sensor" on the pedal. its job is to read the position of the "pedal" as you push it.
You also have a throttle "sensor" on the pedal. its job is to read the position of the "pedal" as you push it.
Racer
Joined: Sep 2000
Posts: 312
Likes: 0
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
They are very precise wire wound resistors and use a sweeping arm to pick up the voltage on the wire wound resistor.
I bet there are more than one.
It has to have more than one.
GM uses redundant circuits to provide throttle by wire safety feed back. Normaly the redundant pots operate oposite of each other. When one pot reads .03 Volts the other pot reads 4.97 Volts. If the voltage are not equal/oposite, it will but the PCM in the REDUCED POWER MODE!
BC
I bet there are more than one.
It has to have more than one. GM uses redundant circuits to provide throttle by wire safety feed back. Normaly the redundant pots operate oposite of each other. When one pot reads .03 Volts the other pot reads 4.97 Volts. If the voltage are not equal/oposite, it will but the PCM in the REDUCED POWER MODE!
BC
Last edited by Bill Curlee; Nov 24, 2009 at 03:47 PM.
Melting Slicks
Joined: Aug 2006
Posts: 2,167
Likes: 11
From: Powell TN
Cruise-In VIII Veteran
They are very precise wire wound resistors and use a sweeping arm to pick up the voltage on the wire wound resistor.
I bet there are more than one. It has to have more than one.
GM uses redundant circuits to provide throttle by wire safety feed back. Normaly the redundant pots operate oposite of each other. When one pot reads .03 Volts the other pot reads 4.97 Volts. If the voltage are not equal/oposite, it will but the PCM in the REDUCED POWER MODE!
BC
I bet there are more than one.
It has to have more than one. GM uses redundant circuits to provide throttle by wire safety feed back. Normaly the redundant pots operate oposite of each other. When one pot reads .03 Volts the other pot reads 4.97 Volts. If the voltage are not equal/oposite, it will but the PCM in the REDUCED POWER MODE!
BC
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