AutoCodes – Ford – P0190 2006 Ford Fusion

P0190 2006 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 2006 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 3,413

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 2006 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 2006 Ford Fusion - Fuel Rail Pressure Sensor Circuit Malfunction - AutoCodes.com — P0190 2006 Ford Fusion Code - Fuel Rail Pressure Sensor Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC P0190 2006 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 2006 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 2006 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.

Need more information about the P0190 2006 Ford Fusion code?

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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 2006 Ford Fusion Code

1. What are common symptoms of OBDII code P0190 in a 2006 Ford Fusion?

- Common symptoms include rough idling, engine stalling, poor fuel efficiency, and a lack of power during acceleration.

2. What causes the OBDII code P0190 in a 2006 Ford Fusion?

- The most common cause of P0190 is a malfunctioning fuel rail pressure sensor or issues with the sensor circuit, such as short circuits or wiring problems.

3. How serious is the OBDII code P0190 in a 2006 Ford Fusion?

- While the vehicle may still be drivable with this code, it is important to address it promptly to avoid potential engine damage and poor performance.

4. Can a faulty fuel rail pressure sensor be repaired, or does it need to be replaced?

- In most cases, a faulty fuel rail pressure sensor will need to be replaced to resolve the P0190 code and restore proper engine performance.

5. How can I diagnose the cause of the OBDII code P0190 in my 2006 Ford Fusion?

- Diagnosing the issue typically involves using a scan tool to check the sensor's voltage readings, inspecting the sensor's wiring for damage, and testing the fuel pressure.

6. Are there any DIY repair tips for fixing the OBDII code P0190 in a 2006 Ford Fusion?

- DIY repair for this code may involve checking and cleaning the sensor's electrical connections, inspecting for loose wires, and ensuring proper sensor installation.

7. Will driving with the OBDII code P0190 in a 2006 Ford Fusion cause further damage?

- Continuing to drive with this code may lead to decreased fuel efficiency, potential engine misfires, and could eventually cause damage to other engine components.

8. How much does it typically cost to repair the OBDII code P0190 in a 2006 Ford Fusion?

- The cost of repairing P0190 can vary depending on the extent of the issue and whether you choose to do the repair yourself or take it to a professional mechanic.

9. Can resetting the OBDII code P0190 in a 2006 Ford Fusion make it go away permanently?

- While clearing the code may temporarily turn off the check engine light, it will likely return if the underlying issue causing P0190 is not addressed.

10. Is it safe to continue driving my 2006 Ford Fusion with the OBDII code P0190 present?

- It is generally not recommended to drive your vehicle with the P0190 code present, as it can lead to potential engine performance issues and reduced fuel efficiency.