AutoCodes – Ford – P0190 2009 Ford Fusion

P0190 2009 Ford Fusion Code - Fuel Rail Pressure Sensor Circuit Malfunction

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: P0190 2009 Ford Fusion indicates Fuel Rail Pressure Sensor Circuit Malfunction.
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 2,318

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 Apr 24, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0190 2009 Ford Fusion 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 P0190 2009 Ford Fusion - Fuel Rail Pressure Sensor Circuit Malfunction - AutoCodes.com — P0190 2009 Ford Fusion Code - Fuel Rail Pressure Sensor Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC P0190 2009 Ford Fusion?

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 P0190 2009 Ford Fusion?

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 P0190 2009 Ford Fusion 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 P0190 2009 Ford Fusion Code

1. What are the common symptoms of OBDII code P0190 in a 2009 Ford Fusion?

The common symptoms of OBDII code P0190 in a 2009 Ford Fusion include rough idling, engine misfires, poor fuel efficiency, and a noticeable decrease in engine performance.

2. What are the possible causes of OBDII code P0190 in a 2009 Ford Fusion?

The possible causes of OBDII code P0190 in a 2009 Ford Fusion include a faulty fuel rail pressure sensor, issues with the fuel pressure regulator, wiring or connector problems, or a malfunctioning engine control module (ECM).

3. How can I diagnose the Fuel Rail Pressure Sensor Circuit Malfunction in my 2009 Ford Fusion?

To diagnose the Fuel Rail Pressure Sensor Circuit Malfunction in a 2009 Ford Fusion, you can use an OBDII scanner to read the trouble code, visually inspect the wiring and connectors, and perform a fuel pressure test to determine if the sensor is functioning properly.

4. Can I continue driving my 2009 Ford Fusion with OBDII code P0190?

It is not recommended to continue driving your 2009 Ford Fusion with OBDII code P0190 as it can lead to further engine damage and potential safety hazards. It is best to address the issue promptly.

5. How can I repair OBDII code P0190 in my 2009 Ford Fusion?

To repair OBDII code P0190 in a 2009 Ford Fusion, you may need to replace the fuel rail pressure sensor, repair any damaged wiring or connectors, or address any issues with the fuel pressure regulator. It is recommended to consult a professional mechanic for accurate diagnosis and repair.

6. Will resetting the OBDII code P0190 in my 2009 Ford Fusion make the issue go away?

Resetting the OBDII code P0190 in a 2009 Ford Fusion may temporarily clear the warning light, but it will not fix the underlying issue causing the Fuel Rail Pressure Sensor Circuit Malfunction. It is essential to diagnose and address the root cause of the problem.

7. How much does it cost to repair OBDII code P0190 in a 2009 Ford Fusion?

The cost to repair OBDII code P0190 in a 2009 Ford Fusion can vary depending on the specific issue causing the Fuel Rail Pressure Sensor Circuit Malfunction. Costs may include parts and labor, with an estimated range of $150 to $500 or more.

8. Can a DIY enthusiast fix OBDII code P0190 in a 2009 Ford Fusion?

While some DIY enthusiasts may have the skills to address OBDII code P0190 by replacing the fuel rail pressure sensor or checking for wiring issues, it is recommended to seek professional help for an accurate diagnosis and proper repair to ensure safety and reliability.

9. Is OBDII code P0190 a common issue in 2009 Ford Fusion vehicles?

OBDII code P0190, indicating a Fuel Rail Pressure Sensor Circuit Malfunction, can be a common issue in 2009 Ford Fusion vehicles, particularly as the vehicle ages and components wear out. Regular maintenance and timely diagnosis can help prevent this problem.

10. How long does it take to repair OBDII code P0190 in a 2009 Ford Fusion?

The time it takes to repair OBDII code P0190 in a 2009 Ford Fusion can vary based on the specific issue and the expertise of the mechanic. Generally, the repair can take anywhere from one to three hours, depending on the complexity of the problem and the availability of parts.