P0122 1998 Ford F150 Code - Throttle Position Sensor Circuit Low Input
Quick Answer
The throttle position sensor (TPS) responds to the accelerator pedal movement. Common causes include Faulty throttle position sensor, Throttle position sensor harness is open or shorted, Throttle position sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0122 1998 Ford F150 indicates Throttle Position Sensor Circuit Low Input .
- Common causes
- Common causes include Faulty throttle position sensor, Throttle position sensor harness is open or shorted, Throttle position sensor circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0122 1998 Ford F150 Description
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 are the Possible Causes of the DTC P0122 1998 Ford F150?
- Faulty throttle position sensor.
- Throttle position sensor harness is open or shorted
- Throttle position sensor circuit poor electrical connection
How to Fix the DTC P0122 1998 Ford F150?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
Fault exhibits a symptom of limited power. A TP PID (TP VPID) reading less than 3.42% (0.17 volt) in key ON engine OFF, continuous memory or key ON engine running indicates a hard fault.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0122 1998 Ford F150 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0122 1998 Ford F150 Code
1. What does the OBDII code P0122 on a 1998 Ford F150 mean?
The code P0122 indicates a Throttle Position Sensor Circuit Low Input error on a 1998 Ford F150.
2. What are the common symptoms of a Throttle Position Sensor Circuit Low Input issue?
Common symptoms include poor acceleration, rough idling, stalling, and difficulty shifting gears.
3. What are the possible causes of the P0122 code on a 1998 Ford F150?
Potential causes include a faulty throttle position sensor, damaged wiring or connectors, a dirty throttle body, or a malfunctioning PCM.
4. How can I diagnose a Throttle Position Sensor Circuit Low Input problem on my 1998 Ford F150?
You can use a multimeter to test the throttle position sensor's voltage output, check for damaged wiring, and inspect the throttle body for any obstructions.
5. Can I drive my 1998 Ford F150 with the P0122 code present?
It is not recommended to drive the vehicle with the P0122 code active, as it can lead to further damage and unsafe driving conditions.
6. How can I repair a Throttle Position Sensor Circuit Low Input issue on my 1998 Ford F150?
Repair options include replacing the throttle position sensor, repairing damaged wiring, cleaning the throttle body, or reprogramming the PCM.
7. Will resetting the OBDII code P0122 on my 1998 Ford F150 make it go away?
Resetting the code may temporarily clear the error, but if the underlying issue is not addressed, the code is likely to reappear.
8. How much does it typically cost to fix a P0122 error on a 1998 Ford F150?
The cost of repair can vary depending on the specific issue, but it may range from $100 to $300 for parts and labor.
9. Are there any preventative measures to avoid the P0122 code on a 1998 Ford F150?
Regular maintenance, such as cleaning the throttle body and inspecting the wiring harness, can help prevent Throttle Position Sensor Circuit Low Input issues.
10. Can a DIY enthusiast fix a P0122 error on a 1998 Ford F150?
Depending on the skill level and tools available, some DIY enthusiasts may be able to diagnose and repair a Throttle Position Sensor Circuit Low Input problem, but it is recommended to seek professional assistance for accurate diagnosis and repair.
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