AutoCodes – Ford – P0192 2003 Ford F150

P0192 2003 Ford F150 Code - Fuel Rail Pressure Sensor Circuit Low Input

Quick Answer

The FRP sensor is a diaphragm strain gauge device. Common causes include Low or no fuel, Faulty Rail Pressure (FRP) Sensor, FRP harness is open or shorted. 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: P0192 2003 Ford F150 indicates Fuel Rail Pressure Sensor Circuit Low Input.
Common causes: Common causes include Low or no fuel, Faulty Rail Pressure (FRP) Sensor, FRP harness is open or shorted.
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 3,610

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 May 30, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0192 2003 Ford F150 Description

The FRP sensor is a diaphragm strain gauge device. The FRP sensor measures the pressure difference between the fuel rail and atmospheric pressure. The FRP sensor nominal output varies between 0.5 and 4.5 volts, with 0.5 volts corresponding to 0 MPa (0 psi) gauge and 4.5 volts corresponding to 26 MPa (3771 psi) gauge. The sensor can read vacuums and may lower the output voltage to slightly below 0.5 volts. This condition is normal and is usually the case after several hours of cold soak before the vehicle dome light is turned on. The FP module is energized at the same time the dome light is commanded on. A disabled or malfunctioning dome light does not affect the FP module control.
The FRP sensor is located on the fuel rail, and provides a feedback signal to indicate the fuel rail pressure to the Powertrain Control Module (PCM). The PCM uses the FRP signal to command the correct injector timing and pulse width for correct fuel delivery at all speed and load conditions. The FRP sensor, along with the fuel volume regulator (part of the fuel injection pump), form a closed loop fuel pressure control system. An electrically faulted FRP sensor results in the deactivation of the fuel injection pump. Fuel pressure to injectors is then provided only by the FP module. When the fuel injection pump is de-energized and the injectors are active, the fuel rail pressure is approximately 70 kPa (10 psi) lower than FP module pressure due to the pressure drop across the fuel injection pump. Thus, if the FP module pressure is 448 kPa (65 psi), then the fuel rail pressure would be approximately 379 kPa (55 psi) if the injectors are active.

OBDII Code P0192 2003 Ford F150 - Fuel Rail Pressure Sensor Circuit Low Input - AutoCodes.com — P0192 2003 Ford F150 Code - Fuel Rail Pressure Sensor Circuit Low Input

What does this mean?

What are the Possible Causes of the DTC P0192 2003 Ford F150?

Low or no fuel
Faulty Rail Pressure (FRP) Sensor
FRP harness is open or shorted
FRP circuit poor electrical connection
Faulty Fuel Pump

How to Fix the DTC P0192 2003 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.

What does this mean?

Code Tech Notes

The comprehensive component monitor (CCM) monitors the FRP sensor circuit to the PCM for low voltage. If voltage were to fall below a calibrated limit and amount of time during testing, the test will fail.
A FRP PID value during KOER or KOEO less than 0.3 volts for gasoline or 0.5 volts for natural gas vehicles (NG) would indicate a hard fault.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0192 2003 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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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 P0192 2003 Ford F150 Code

1. What are common symptoms of OBDII code P0192 in a 2003 Ford F150?

- Common symptoms include rough idling, engine stalling, decreased fuel efficiency, and difficulty starting the vehicle.

2. What does the OBDII code P0192 on a 2003 Ford F150 indicate?

- The code P0192 indicates a low input signal from the fuel rail pressure sensor circuit.

3. What are possible causes of the low input signal in the fuel rail pressure sensor circuit of a 2003 Ford F150?

- Possible causes include a faulty fuel rail pressure sensor, wiring issues, poor electrical connections, or a problem with the powertrain control module (PCM).

4. How can I diagnose the issue with the fuel rail pressure sensor circuit in my 2003 Ford F150?

- Diagnose by checking the sensor for proper operation, inspecting the wiring for damage or corrosion, and testing the electrical connections for continuity.

5. Can driving with OBDII code P0192 on a 2003 Ford F150 cause further damage?

- Driving with this code may lead to poor engine performance, reduced fuel efficiency, and potential damage to other engine components over time.

6. How can I repair OBDII code P0192 in my 2003 Ford F150?

- Repair options include replacing the fuel rail pressure sensor, repairing damaged wiring, ensuring proper electrical connections, and resetting the trouble codes.

7. Is it safe to continue driving a 2003 Ford F150 with OBDII code P0192?

- It is not recommended to drive the vehicle with this code present, as it can lead to engine problems and potential safety hazards.

8. Can a DIY enthusiast fix the fuel rail pressure sensor circuit issue causing OBDII code P0192 in a 2003 Ford F150?

- A DIY enthusiast with proper knowledge and tools can attempt to diagnose and repair the issue, but consulting a professional mechanic is recommended for accurate diagnosis and repair.

9. How much does it typically cost to repair OBDII code P0192 in a 2003 Ford F150 at a repair shop?

- Repair costs can vary depending on the exact cause of the issue, but expect to pay for diagnostic time, replacement parts, and labor, which can range from $200 to $500 or more.

10. Can resetting the OBDII trouble codes clear P0192 in a 2003 Ford F150?

- Resetting the trouble codes may temporarily clear the code, but if the underlying issue with the fuel rail pressure sensor circuit is not fixed, the code is likely to reappear.