When does the throttle position sensor display a low voltage?
Code P0122 gets logged when the throttle position sensor “A” displays lower voltage than normal. Several OBD-II trouble codes also cover the performance of the throttle position sensor at the “A” position. They are:
What’s the name of the sensor on the accelerator?
Modern vehicles are equipped with a lot of sensors and computers to manage basic car controls automatically and precisely. That helps in better gas mileage, smoother, comfortable and a safe drive. Almost every modern car now has a sensor called the TPS and an accelerator pedal position sensor.
When does accelerator pedal position ( app ) sensor 1 go bad?
When the Accelerator Pedal Position (APP) Sensor 1 goes bad, you’re gonna’ see the following symptoms: Check engine light will be lit on your instrument cluster. P0121: Accelerator Pedal Position (APP) Sensor 1 Circuit Performance. P1125: Accelerator Pedal Position (APP) System. Lack of power when accelerating the engine.
Is there a TPS sensor on the accelerator pedal?
The result is a smooth and responsive drive. Some cars use both an accelerator pedal position sensor on the pedal and one TPS sensor on the throttle body, while some cars only have a TPS sensor on the throttle body. A TPS sensor’s importance can be emphasized as it can affect the gas mileage and engine response.
Code P0122 gets logged when the throttle position sensor “A” displays lower voltage than normal. Several OBD-II trouble codes also cover the performance of the throttle position sensor at the “A” position. They are:
When the Accelerator Pedal Position (APP) Sensor 1 goes bad, you’re gonna’ see the following symptoms: Check engine light will be lit on your instrument cluster. P0121: Accelerator Pedal Position (APP) Sensor 1 Circuit Performance. P1125: Accelerator Pedal Position (APP) System. Lack of power when accelerating the engine.
Modern vehicles are equipped with a lot of sensors and computers to manage basic car controls automatically and precisely. That helps in better gas mileage, smoother, comfortable and a safe drive. Almost every modern car now has a sensor called the TPS and an accelerator pedal position sensor.
The result is a smooth and responsive drive. Some cars use both an accelerator pedal position sensor on the pedal and one TPS sensor on the throttle body, while some cars only have a TPS sensor on the throttle body. A TPS sensor’s importance can be emphasized as it can affect the gas mileage and engine response.
What does a p0122 code on a throttle position sensor mean?
A P0122 code means that the the vehicle’s computer has detected that the TPS (throttle position sensor) “A” is reporting too low a voltage. On some vehicles that lower limit is 0.17 – 0.20 volts (V). In simple terms, the throttle position sensor is used to determine what position the throttle is at. Did you adjust it…
How is the idle position of the throttle valve determined?
Idle position of the throttle valve is determined by the ECM receiving the signal from the throttle position sensor. This sensor controls engine operation such as fuel cut. On the other hand, the Wide open and closed throttle position switch, which is built into the throttle position sensor unit, is not used for engine control.
What to do if your throttle position sensor breaks?
Some recommended troubleshooting and repair steps are: 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).
What does the p1238 code on a throttle sensor mean?
Code P1238 indicates that the signals from the two throttle position sensors (or two accelerator pedal position sensors) do not correlate. What Does the P2138 Code Mean?
A P0122 code means that the the vehicle’s computer has detected that the TPS (throttle position sensor) “A” is reporting too low a voltage. On some vehicles that lower limit is 0.17 – 0.20 volts (V). In simple terms, the throttle position sensor is used to determine what position the throttle is at. Did you adjust it…
Some recommended troubleshooting and repair steps are: 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).
What should the return voltage be at idle?
The return voltage depends on throttle positon. Typically, the signal value at idle will be about .45 volts. This voltage reading increases as the throttle is opened and will read about 4.5 volts at wide open throttle (WOT).
How to test the throttle position sensor in Sonoma?
To see the tutorial that covers the 1998 thru’ 2003 throttle position sensor go here: How To Test The Throttle Position Sensor (1998-2003 2.2L S10 and Sonoma). In a nutshell, the throttle position sensor’s job is to let the PCM know the throttle plate position (angle) as it opens or closes.
In addition, the sensor detects the opening and closing speed of the throttle valve and feeds the voltage signal to the ECM. Idle position of the throttle valve is determined by the ECM receiving the signal from the throttle position sensor. This sensor controls engine operation such as fuel cut.