AutoCodes – Generic – P228F

P228F Code - Fuel Pressure Regulator 1 Exceeded Learning Limits Too High

Quick Answer

The Powertrain Control Module (PCM) continuously monitors the fuel rail pressure sensor for concerns. Common causes include Clogged or Damage Fuel Filter, Faulty Fuel Pressure (FRP) Regulator, Faulty Fuel Pump. 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: P228F indicates Fuel Pressure Regulator 1 Exceeded Learning Limits Too High.
Common causes: Common causes include Clogged or Damage Fuel Filter, Faulty Fuel Pressure (FRP) Regulator, Faulty Fuel Pump.
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 31,308

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 24, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
Comments
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Code P228F Description

The Powertrain Control Module (PCM) continuously monitors the fuel rail pressure sensor for concerns. If the PCM detects that the fuel rail pressure is 20% greater than the calculated threshold, the Diagnostic Trouble Code (DTC) sets.

OBDII Code P228F - Fuel Pressure Regulator 1 Exceeded Learning Limits Too High - AutoCodes.com — P228F Code - Fuel Pressure Regulator 1 Exceeded Learning Limits Too High

What does this mean?

What are the Possible Causes of the DTC P228F?

Clogged or Damage Fuel Filter
Faulty Fuel Pressure (FRP) Regulator
Faulty Fuel Pump
Faulty Fuel Pressure (FRP) Sensor

How to Fix the DTC P228F?

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 presence of this Diagnostic Trouble Code (DTC) may indicate that the vehicle is operating in derate mode and may experience a loss of power.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P228F 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 P228F code?

Need more information on how to fix the P228F code? Get Access to Factory Service Manuals

Need Help with the Code?

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Information for Specific Makes

P228F Ford — Fuel Pressure Regulator 1 Exceeded Learning Limits Too 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.