What are the DTCs for Ford throttle position sensor?
TPS diagnostic trouble codes (DTCs) stored in the vehicle’s computer’s memory. P0121: Throttle Position (TP) Circuit Performance Problem. P0122: Throttle Position (TP) Circuit Low Input. P0123: Throttle Position (TP) Circuit High Input. Really bad gas mileage.
How does the throttle position sensor ( TPS ) work?
The throttle position sensor is mounted on the end of the throttle body and tells the computer how far open or closed the throttle is. The TPS is pretty easy to understand how it work’s, it is a potentiometer just like your dimmer switch in the dash. Voltage is fed to the TPS by the signal return circuit.
What kind of multimeter do you need to test throttle position?
The type of multimeter that you’ll need to resistance test Throttle Position (TP) Sensor 1 and Sensor 2 is important. You need to use a digital multimeter with a bar graph or an analog multimeter (this is a multimeter with a needle).
How does the throttle position sensor on a Ford Mini Van work?
The throttle position sensor’s job is to measure the angle of the throttle. So here, in a nutshell, is how the TPS on your Ford or Mercury or Mazda car (pick up, mini-van) works when you crank and start it: The fuel injection computer supplies 5 Volts and Ground to the throttle position sensor.
What do you need to know about the Ford throttle position sensor?
P0122: Throttle Position (TP) Circuit Low Input. P0123: Throttle Position (TP) Circuit High Input. Really bad gas mileage. Transmission does not shift out of second gear. No power as you accelerate the vehicle. Hesitation when you step on the accelerator pedal.
How does the TP sensor work on a Ford?
As you let go off the accelerator pedal to slow down, the throttle plate closes and of course the TP sensor sends the info to the PCM as it returns to its base voltage signal, till the whole cycle begins again. Pretty easy stuff? The cool thing is that the tests to check out the TP sensor’s performance are as easy too.
What should Vref be for throttle position sensor?
If you need to grossly modify the TPS mounting holes to adjust Closed Throttle between 0.6-1.0 volts, you should recheck the idle stop screw first. Values were calculated for VREF = 5.0 volts.
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.