AutoCodes – Ford – P0192 Ford

P0192 Ford 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 Ford 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 35,556
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 30, 2022
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

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

What are the Possible Causes of the DTC P0192 Ford?

  • 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 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 P0192 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 P0192 Ford code?

Need more information on how to fix the P0192 Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0192 Ford code diagnosed by a professional: Find a repair shop in your area

Information for Specific Ford Models

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 Ford Code

1. What are common symptoms of OBDII code P0192 in a Ford related to the fuel rail pressure sensor circuit?

Typical symptoms include engine stalling, rough idling, poor acceleration, and decreased fuel efficiency.

2. What can cause the OBDII code P0192 in a Ford to trigger?

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

3. How can I diagnose the Fuel Rail Pressure Sensor Circuit Low Input issue in my Ford with code P0192?

To diagnose the problem, use an OBDII scanner to read the code, visually inspect the wiring and connectors, test the fuel rail pressure sensor, and check the fuel pressure with a gauge.

4. Is it safe to continue driving my Ford with the P0192 code triggered?

It is not recommended to drive your vehicle with the P0192 code triggered, as it can lead to further damage and potential safety hazards. It's best to address the issue promptly.

5. Can I repair the Fuel Rail Pressure Sensor Circuit Low Input problem in my Ford on my own?

Depending on your mechanical expertise, you may be able to replace the fuel rail pressure sensor or fix wiring issues yourself. However, if unsure, it's best to consult a professional mechanic.

6. Will resetting the OBDII code P0192 in my Ford make the issue disappear?

Resetting the code may temporarily turn off the check engine light, but it won't fix the underlying problem causing the P0192 code. The issue needs to be diagnosed and repaired for a permanent solution.

7. How much does it typically cost to repair the Fuel Rail Pressure Sensor Circuit Low Input issue in a Ford?

The cost of repair can vary based on the specific cause of the problem, but it may range from $100 to $300 for parts and labor.

8. Are there any preventive maintenance steps to avoid triggering the P0192 code in a Ford?

Regularly maintaining your vehicle, such as changing the fuel filter and ensuring proper fuel system operation, can help prevent issues leading to the P0192 code.

9. Can the OBDII code P0192 in a Ford be related to other engine performance problems?

Yes, the Fuel Rail Pressure Sensor Circuit Low Input issue can impact overall engine performance, causing drivability issues like poor acceleration, rough idling, and even engine stalling.

10. How urgent is it to address the P0192 code in a Ford once it's triggered?

It's important to address the P0192 code promptly to prevent further damage to the engine or fuel system. Ignoring the issue can lead to more severe problems and potential safety risks.

Discuss the causes and fixes for P0192 Ford OBDII Code

  • 2005 E-Series Camper 6.8 2V. Codes P0191/P0192, replaced frp sensor and fuel filter. after replacing above items light comes on after 30-50 miles of travel. Autel MaxiDas indicates fuel pressure under range specs. I suspect a ground/short in circuit, any suggestions

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play