AutoCodes – Ford – P120E Ford

P120E Ford Code - Fuel Pressure Sensor Circuit 'A' Excessive Variation

Quick Answer

The Powertrain Control Module (PCM) monitors the Fuel Pressure Sensor Circuit 'A'. Common causes include Faulty Fuel Pressure Sensor Circuit 'A', Fuel Pressure Sensor Circuit 'A' harness is open or shorted, Fuel Pressure Sensor Circuit 'A' 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: P120E Ford indicates Fuel Pressure Sensor Circuit 'A' Excessive Variation.
Common causes: Common causes include Faulty Fuel Pressure Sensor Circuit 'A', Fuel Pressure Sensor Circuit 'A' harness is open or shorted, Fuel Pressure Sensor Circuit 'A' 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.

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Code Popularity 4,371

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 02, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P120E Ford Description

The Powertrain Control Module (PCM) monitors the Fuel Pressure Sensor Circuit 'A'. The PCM sets the OBDII code when the Fuel Pressure Sensor Circuit 'A' is not to factory specifications.

OBDII Code P120E Ford - Fuel Pressure Sensor Circuit 'A' Excessive Variation - AutoCodes.com — P120E Ford Code - Fuel Pressure Sensor Circuit 'A' Excessive Variation

What does this mean?

What are the Possible Causes of the DTC P120E Ford?

Faulty Fuel Pressure Sensor Circuit 'A'
Fuel Pressure Sensor Circuit 'A' harness is open or shorted
Fuel Pressure Sensor Circuit 'A' circuit poor electrical connection

How to Fix the DTC P120E Ford?

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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P120E Ford 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.

Need more information about the P120E Ford code?

Need more information on how to fix the P120E Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P120E Ford code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P120E Ford Code

1. What are common symptoms of OBDII code P120E in a Ford vehicle?

- Common symptoms include rough idling, engine misfires, loss of power, and potential stalling.

2. What causes the OBDII code P120E in a Ford vehicle?

- The code is typically triggered by issues with the fuel pressure sensor circuit, such as wiring faults, sensor malfunctions, or fuel system problems.

3. How can I diagnose the cause of OBDII code P120E in my Ford?

- Diagnosing the issue usually involves checking the fuel pressure sensor, inspecting wiring connections, and testing the fuel system for proper operation.

4. Can a faulty fuel pressure sensor cause code P120E in a Ford?

- Yes, a faulty fuel pressure sensor can lead to the triggering of OBDII code P120E due to inaccurate readings or excessive variations in fuel pressure.

5. What are the repair options for OBDII code P120E in a Ford vehicle?

- Repair options may include replacing the fuel pressure sensor, repairing wiring issues, addressing fuel system problems, or resetting the code after fixing the underlying cause.

6. Is it safe to continue driving with OBDII code P120E present in a Ford vehicle?

- It is not recommended to drive with the code active, as it can lead to further engine issues and potentially affect vehicle performance and safety.

7. Can I reset OBDII code P120E in my Ford without fixing the underlying issue?

- While it is possible to reset the code temporarily, it is important to address the root cause to prevent the code from reoccurring and ensure proper vehicle operation.

8. How much does it typically cost to repair OBDII code P120E in a Ford?

- The cost of repairing the code can vary depending on the specific cause and needed repairs, but it may range from a few hundred to a thousand dollars at a dealership or repair shop.

9. Are there any preventive maintenance tips to avoid OBDII code P120E in a Ford?

- Regularly inspecting and maintaining the fuel system components, including the fuel pressure sensor, can help prevent issues that may trigger code P120E.

10. Can a DIY enthusiast repair OBDII code P120E in a Ford, or is professional help necessary?

- While some individuals may have the skills to diagnose and repair the issue themselves, seeking professional help from a mechanic or technician is often recommended for proper diagnosis and repair of code P120E.