To reset the throttle position sensor on a Ford F150, there are two methods, automatic and manual. The automatic method involves turning the key to the “On” position, pressing the gas pedal all the way down and quickly releasing it, repeating this cycle three times, and testing the throttle response. If the automatic method does not work, the manual method can be used by disconnecting the negative battery cable, removing the TPS, adjusting it manually, and reinstalling it.
That’s a brief overview of the topic. Keep reading for a thorough guide on how to reset Ford F150 throttle position sensor.
How To Reset Ford F150 Throttle Position Sensor?
The Ford F-150 throttle position sensor can be reset through both automatic and manual methods, with the former being the preferred initial option. If the automatic method fails to effectively address any issues with the throttle position sensor, it is then recommended to proceed with the manual reset method.
Method 1: Ford F150 Throttle Position Sensor Automatic Reset
Follow these steps according to the order to reset the TPS (Throttle Position Sensor) on a Ford F150:
- Put the ignition to the “ON” position but don’t start the engine.
- Put your feet on the gas pedal and push it all the way down slowly
- Allow it to come back up on its own by releasing the gas pedal quickly.
- Turn the key in off position
- Repeat the cycle three times.
- Turn the engine on and test the throttle response.
This is one of the simplest ways of resetting the throttle position sensor. If the automatic resetting doesn’t work, you just need to reset it manually.
Method 2: Ford F150 Throttle Position Sensor Manual Reset
You can reset the throttle position sensor (TPS) on your Ford F-150 by following these simple steps:
- Disconnect the negative battery cable. It will ensure that there is no electricity running through the system while you work on it.
- The TPS is typically mounted on the throttle body. You’ll then find two screws that hold it in place.
- The two screws that hold the TPS in place, remove them with a screwdriver. Keep the screws in a safe place so that you don’t lose or drop them.
- Carefully pull the TPS out of its housing. To avoid any kind of damage and handle it with care and be gentle while putting them away.
- On the side of the TPS, you will find a hole. Insert a small flathead screwdriver into that hole.
- Slowly Turn the screwdriver until you feel a slight resistance. TPS is reset at this point and is ready for reinstallation.
- Once the TPS is reset, carefully reinsert it into its housing. It should be seated and aligned properly.
- Secure the TPS in place by reattaching the two screws.
- Connect back the negative terminal of the battery.
- To be sure your truck is running smoothly, start your engine. If problems still persist either you may need to repeat the process or consult with a professional expert.
That’s it! You have successfully reset the throttle position sensor on your Ford F-150. If the issue persists even after attempting a manual reset, it may be necessary to replace the throttle position sensor.
But before that, you need to make sure if the TPS is faulty or not through a simple diagnosis process.
F-150 Throttle Position Sensor Diagnosis
To diagnose the throttle position sensor follow the comprehensive steps mentioned below.
- OBD Scanner
Step 1: Locate the OBD Data Link Connector (DLC)
Most OBD data link connectors (DLCs) are located in the engine compartment near the battery or fuse box. The switch is located beneath the instrument panel next to the steering column on post-1995 F150s. You may need to refer to your owner’s manual for actual locations.
Source: Spark Fun
Step 2: Put the Key in the “ON” Position
You should turn the ignition to “ON”, but do not start the engine. As a result, the OBD scan tool will be able to communicate with your vehicle’s computer.
Step 3: Connect the OBD Scan Tool
Plug the OBD scan tool into the DLC and turn it on. Then you’ll be taken to read the Diagnostic Trouble Code (DTC). Here are some potential states for which you may see the following codes:
- P0121: TPS “A” circuit has an output voltage that goes above or båelow the sensor’s normal operating range..
- P0122: Represents low TPS voltage, caused by an open TPS sensor terminal or shorted ground terminal.
- P0123: Represents high TPS voltage, caused by bad sensor grounding or a shorted sensor terminal to reference voltage terminal.
For any specific codes mentioned above you need to inspect the particular parts that trigger these codes.
Step 4: Test the Resistance of the TPS
TPS resistance can be measured with a digital multimeter. Set the multimeter to 10 DC voltage mode, place the probes on the TPS terminals, and gradually open the throttle. The multimeter should display a steadily increasing value and 5 volts when the prob is fully open. If the value skips get stuck or don’t reach 5 volts, replace the TPS.
You can also refer to the video below to know how to measure TPS resistance with a multimeter. 1990 FORD F150 TPS (throttle position sensor) VOLTAGE ADJUSTMENT AND SENSOR MODIFICATION
If you find the TPS is bad you can replace it by following the steps stated above. Afterward replacing the throttle position sensor it’s important to perform a few more steps.
Step 5: Delete Diagnostic Trouble Codes (DTCs)
Use the OBD scan tool to erase the DTC. This will clear the check engine light. Refer to the video for the guide to erasing the DTC code. How To Clear Permanent Diagnostic Trouble Codes▶️ PDTC Mode 10
Step 6: Calibrate the New TPS Sensor
In order to calibrate the TPS sensor on a Ford F150, first turn the key to the ignition-on position, but do not start the engine. Afterward, fully rotate the throttle and then bring it back to idle. By doing this twice in a row an auto-calibration dialog box will appear after the process is complete. You can also refer to the video below for a better understanding. Ford Vehicles: Electronic Throttle Body Calibration Procedure
Step 7: Take a Road Test
Take a road test to ensure that the new TPS is working properly. If the check engine light reappears, repeat the diagnostic process for additional DTCs or consult a certified repair shop.
And you’ve done it. The throttle position sensor is successfully replaced.
When to Reset Your Ford Throttle Position Sensor?
When you notice symptoms like hesitation while accelerating, low power, or difficulty shifting gears, you need to reset the throttle position sensor. The throttle position sensor in your Ford may be malfunctioning if you experience unusual surges when accelerating.
In such kinds of situations, you need to reset the throttle position sensor. But resetting the sensor alone won’t fix the root problem. You should only reset the sensor as part of the diagnosis or repair/replacement process.
What Happens If You Unplug TPS?
Unplugging the throttle position sensor (TPS) will cause the engine to run poorly, leading to a waste of fuel and increased emissions. It can also cause significant carbon buildup in the engine and exhaust, resulting in costly maintenance in the future. Therefore, it is not recommended to drive without a properly functioning TPS.
Does Throttle Position Sensor Affect Acceleration?
Yes, the throttle position sensor (TPS) can affect acceleration. In order to control the engine, the TPS sends information to the car’s engine control module. Depending on the position of the accelerator pedal, fuel is injected into the engine. Having a malfunctioning TPS can lead to sluggish acceleration and hesitation when applying the gas pedal, as well as issues with fuel delivery.
Does Throttle Position Sensor Affect Fuel?
Yes, the throttle position sensor (TPS) can affect the amount of fuel that your engine receives at any given moment. If the TPS is not working correctly, it can cause changes in how your car runs and accelerates, including issues with fuel delivery. Therefore, it’s important to make sure that your TPS is functioning correctly to ensure optimal fuel efficiency and performance from your car.
Well, now I know the methods for the Ford F150 throttle position sensor reset. Hopefully, this information will be adequate for a comprehensive guide in this regard. Remember if you have a lack of understanding of technical issues or if you feel uncomfortable performing the electrical tasks it’s better to consult a professional mechanic.