What is throttle issue?
When the throttle body is dirty, clogged up or malfunctioning this stops the flow of air into the engine, which not only causes problems with performance, but can cause issues with unburned fuel passing through the exhaust system.
What is throttle voltage?
Working throttles have a power output between 0.8-4.3 Volts DC. The output Voltage can be as low as 0.5 Volts and as high as 5 Volts on a good working throttle.
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 should the voltage be when you open the throttle?
With the ignition on and throttle closed, you should get a reading of around 0.5 volts. Operate the throttle cam by hand and slowly open the throttle. -If the sensor is working properly, the voltage signal will increase as the throttle opens.
What causes a throttle by wire problem in a car?
Most of the faults that occur in TBW systems relate to pedal or throttle position sensors that may wear out, skip or emit erratic signals. Throttle body motor failures and electrical problems, such as loose or corroded, wiring connectors are also common.
What is the OBD code for throttle by wire?
The TBW system also monitors the throttle position sensors on the throttle body. A fault here can set any of the same OBD II codes just listed for the pedal position sensor, or OEM enhanced P1 or P2 series codes for that specific vehicle.
With the ignition on and throttle closed, you should get a reading of around 0.5 volts. Operate the throttle cam by hand and slowly open the throttle. -If the sensor is working properly, the voltage signal will increase as the throttle opens.
Can a bad throttle position sensor cause stalling?
Similarly, if your engine struggles to idle efficiently, it could also be a result of a damaged throttle position sensor. Stalling, surging, or hesitating while idling all can be caused by this unassuming sensor. The best way to determine if these issues are caused by your throttle position sensor is to go to the source.
Most of the faults that occur in TBW systems relate to pedal or throttle position sensors that may wear out, skip or emit erratic signals. Throttle body motor failures and electrical problems, such as loose or corroded, wiring connectors are also common.
What should the throttle position sensor reading be?
-Once the throttle is completely open, the reading should be around 4.5 volts. Slowly return the throttle to the closed position while looking for a corresponding decrease in voltage front the TP sensor. -A good sensor will produce a smooth, decrease in voltage without any dropout spots.