AutoCodes – Ford – P1181 Ford

P1181 Ford Code - Fuel Delivery System Malfunction High

Quick Answer

The Powertrain Control Module (PCM) receives Fuel Tank Pressure (FTP) information from the Natural Gas module (NG), which uses the information to infer Fuel Rail Pressure (FRP). Common causes include Restriction in the fuel line, Plugged fuel filter, Faulty Fuel Pressure Regulator. 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: P1181 Ford indicates Fuel Delivery System Malfunction High.
Common causes: Common causes include Restriction in the fuel line, Plugged fuel filter, Faulty Fuel Pressure Regulator.
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 20,976

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 Jul 08, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P1181 Ford Description

OBDII Code P1181 Ford - Fuel Delivery System Malfunction High - AutoCodes.com — P1181 Ford Code - Fuel Delivery System Malfunction High

What does this mean?

What are the Possible Causes of the DTC P1181 Ford?

Restriction in the fuel line
Plugged fuel filter
Faulty Fuel Pressure Regulator
Faulty Fuel Rail Solenoid Shutoff Valve
Fuel Rail Solenoid Shutoff Valve harness is open or shorted
Fuel Rail Solenoid Shutoff Valve circuit poor electrical connection

How to Fix the DTC P1181 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 P1181 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 P1181 Ford code?

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Need Help with the Code?

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Information for Specific Ford Models

P1181 1997 Ford F150 — Fuel Delivery System - High
P1181 1998 Ford F150 — Fuel Delivery System - High
P1181 1999 Ford F150 — Fuel Delivery System - High
P1181 2000 Ford F150 — Fuel Delivery System - High
P1181 2001 Ford F150 — Fuel Delivery System - High
P1181 2002 Ford F150 — Fuel Delivery System - High
P1181 2003 Ford F150 — Fuel Delivery System - High

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.