AutoCodes – Ford – P0192 1999 Ford F150

P0192 1999 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 1999 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 2,611

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 1999 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 1999 Ford F150 - Fuel Rail Pressure Sensor Circuit Low Input - AutoCodes.com — P0192 1999 Ford F150 Code - Fuel Rail Pressure Sensor Circuit Low Input

What does this mean?

What are the Possible Causes of the DTC P0192 1999 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 1999 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 1999 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 1999 Ford F150 Code

1. What are common symptoms of OBDII code P0192 on a 1999 Ford F150?

- Common symptoms include poor engine performance, rough idling, stalling, and reduced fuel efficiency.

2. What does the OBDII code P0192 for a 1999 Ford F150 indicate?

- OBDII code P0192 signifies a low input signal from the fuel rail pressure sensor circuit.

3. What are the possible causes of OBDII code P0192 on a 1999 Ford F150?

- Possible causes include a faulty fuel rail pressure sensor, damaged wiring or connectors, low fuel pressure, or a malfunctioning PCM.

4. How can I diagnose the OBDII code P0192 on my 1999 Ford F150?

- To diagnose OBDII code P0192, you can use a scan tool to read the code, visually inspect the sensor and wiring, and test the fuel pressure.

5. How do I repair OBDII code P0192 on a 1999 Ford F150?

- Repair options may include replacing the fuel rail pressure sensor, repairing or replacing damaged wiring, addressing low fuel pressure issues, or reprogramming the PCM.

6. Can I drive my 1999 Ford F150 with OBDII code P0192?

- It is not recommended to drive your vehicle with OBDII code P0192 as it can lead to further engine damage and potential safety hazards.

7. Will resetting the OBDII code P0192 on a 1999 Ford F150 make it go away?

- Resetting the code may temporarily clear the warning light, but if the underlying issue is not addressed, the code is likely to reappear.

8. How much does it typically cost to repair OBDII code P0192 on a 1999 Ford F150?

- The cost of repairing OBDII code P0192 can vary depending on the exact cause, but it may range from $150 to $400 including parts and labor.

9. Can a DIY enthusiast fix OBDII code P0192 on a 1999 Ford F150?

- While some aspects of diagnosing and repairing OBDII code P0192 can be tackled by a DIY enthusiast, it is recommended to consult a professional for accurate diagnosis and repair.

10. Is OBDII code P0192 a common issue in 1999 Ford F150 vehicles?

- OBDII code P0192 is not extremely common, but it can occur in 1999 Ford F150 vehicles due to sensor or wiring issues related to the fuel rail pressure system.