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According to my factory service manual the voltage at the throttle position sensor should vary from about 0.5 volts in the idle position to 5.0 volts in the wide open throttle position.
Volt meter should be in a 5 volt scale.
There is a throttle position sensor mounted to the throttle body. That's the place where the air intake valve sits near the top of the engine. Look for the throttle butterfly valve; on the end of the butterfly valve shaft should be a little sensor with wires connected; that's the throttle position sensor.
Look under the hood, at the throttle body assembly. You should see the accelerator cable attached to a pulley like assembly and when the pedal is depressed, the cable should move the throttle valve. The throttle position sensor is attached to the shaft that the throttle cable is moving. It will be the part with the electrical connections.
According to my factory service manual the throttle position sensor voltage on a Chevrolet Celebrity should be between 0.5 V and 5.0 volts as it moves through its range of motion.
It should take you less than a half an hour to replace the TPS sensor.
The throttle position sensor, TPS should be in about the same position as it was in earlier models - so the "Related Question" below should also be helpful.
Code 24 Throttle position sensor. Normally means that the 5 volt reference voltage that it sends to the computer to tell the throttles position has been exceeded. at idle the throttle position sensor should be .5 volts at full throttle it should be 4.9 volts if the TPS exceeds 5 volts it creates a code 24
the first thing i would check is the THROTTLE POSITION SENSOR, idle -voltage should be 1volt, wide open throttle should be 4.5-5.0volts
throttle position sensors are usually on the opposite side of the mechanisim that operates the valve inside the throttle body (wether its the simple old school cable, or a newer drive by wire setup. if its a drive by wire setup it may be integrated within the electric motor that moves the valve in the throttle body). Either way it should be right there at the throttle body, which can be found between the air filter and the intake on the engine, closer to the intake.
It is on the side of the throttle body should be on the back side.
the throttle position sensor should be on the side or the bottom of the throttle body. it is a little black or silver piece with 2 screws on it