What are the DTC codes for the throttle position sensor?

TPS diagnostic trouble codes (DTC’s) stored in the vehicle’s computer’s memory. P0121: Throttle Position Sensor Performance. P0122: Throttle Position Sensor Circuit Low Voltage. P0123: Throttle Position Sensor Circuit High Voltage. Really bad gas mileage. Transmission does not shift out of second gear.

How does the throttle position sensor work on a GM Truck?

Like the majority of throttle position sensors on modern fuel injected cars and trucks nowadays, the GM TPS is a three wire sensor. Each wire provides a specific type of signal to the TPS or to the PCM (Powertrain Control Module=Fuel Injection Computer). Below are the circuit descriptions of each:

What does an ACDelco throttle position sensor Kit do?

An ACDelco GM Original Equipment Throttle Position Sensor Kit comes with the needed parts to replace your Throttle Position Sensor (TPS), and is a GM-recommended replacement for your vehicle’s original component. The TPS reports the throttle position to the engine control module, which uses the signal to adjust fuel delivery and ignition timing.

What are the symptoms of a bad throttle position sensor?

Symptoms Of A BAD Throttle Position Sensor (TPS) Beside the CHECK ENGINE LIGHT (CEL) being on and driving you nuts, your Chevy or GMC pick up (or SUV or van) may be experiencing one or several of the following symptoms: TPS diagnostic trouble codes (DTC’s) stored in the vehicle’s computer’s memory.

Is there a throttle position sensor on a Chevy pick up?

The throttle position sensor in this video is on a Chevrolet pick up truck. Most General Motors cars will have throttle position sensor’s like this.

What happens when the throttle position sensor fails?

The throttle position sensor can fail in several ways, all of which result in poor fuel economy at best, and performance limitations that may create safety hazard for you and other motorists at worst. This sensor can fail gradually, or all at once. In most cases, the Check Engine Light is illuminated if a TPS failure is detected.

How to fix Chevy throttle position sensor p0122?

– YouTube 2000-2006 Chevy Throttle Position Sensor P0122 (HARD SHIFTING SOLVED HERE!) If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer.

What happens when the throttle moves on a GMC?

As the throttle moves, a voltage signal ranging from 0.5 volts to 5.0 volts is sent to the engine computer. If the sensor fails, the computer has no precise control over the engine fuel delivery.

What should TPS voltage be with closed throttle?

The voltage with closed throttle should be between 0.400 and 0.625 volts for most applications (check appropriate reference guides for your application’s specified voltage range). If the voltage you get is not within spec, loosen the TPS retaining screws and adjust as necessary.

What should the voltage be on an idle air control valve?

Using an voltmeter, measure the voltage at terminal 1. Turn the ignition ON , and measure the voltage between terminal 1 and ground. Voltage should be around 6.0-8.5v. If voltage is not present or out of range, repair the circuit.

When is a bad throttle position sensor a warning sign?

Engine won’t idle smoothly, idles too slowly, or stalls If you start to experience engine misfires, stalling, or rough idling when the car is stopped, it can also be a warning sign of a failing TPS. You don’t want to wait to get this checked out!

How to test the MAP sensor ( 2001-2004 Chrysler )?

You can find this tutorial in Spanish here: Cómo Probar El Sensor MAP (2001-2004 3.3L Chrysler) (at: autotecnico-online.com ). When the manifold absolute pressure (MAP) sensor fails, the check engine light will turn on and you’ll see one of the following diagnostic trouble codes:

What to do if your throttle position sensor is too low?

Carefully check the throttle position sensor (TPS), wiring connector, and wiring for breaks, etc. Repair or replace as necessary Check the voltage at the TPS (refer to a service manual for your vehicle for specific information). If the voltage is too low that is indicative of a problem. Replace if necessary.

Where is the throttle position sensor on a 3.8L GM engine?

(The tab inside the sensor MUST be touching the rotating pins in the throttle body. In a 3.8L GM engine, this means inserting it with then connector at 12 o’clock before rotating it to 9 o’clock for the final mounting position.)