← View Generic P1231 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2019 Ford F150 PICKUP

P1231: P1231: Fuel Pressure Regulator Control Circuit Low Input

on 2019 Ford F150 PICKUP

Fix Cost
$100 - $500
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
❌ No
Pro recommended
Your Vehicle
2019 Ford
F150 PICKUP
⚠️

Important for 2019 Ford F150 PICKUP Owners

Before starting repairs, verify which engine your 2019 Ford F150 PICKUP has. Check your VIN or engine code to ensure you order the correct parts.

📖 What Does P1231 Mean on 2019 Ford F150 PICKUP?

The fuel pressure regulator control circuit low input is detected. This code is specific to Ford vehicles. It indicates a problem with the fuel pressure regulator or its control circuit.
⚠️

Symptoms

  • • Rough idle
  • • decreased fuel efficiency
  • • poor engine performance
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Common Causes

  • • Faulty fuel pressure regulator
  • • clogged fuel filter
  • • low fuel pressure
  • • faulty fuel pressure regulator control circuit
🛠️

How to Fix P1231 on 2019 Ford F150 PICKUP

Check and clean the fuel filter, inspect and replace the fuel pressure regulator if necessary, check and repair the fuel pressure regulator control circuit

🔧

Need Maintenance Info for Your F150 PICKUP?

Get oil capacity, filter specs, and torque settings for your specific 2019 Ford F150 PICKUP.

View 2019 Ford F150 PICKUP Specs

Parts for 2019 Ford F150 PICKUP

Fuel pressure regulator Shop ↗ Fuel filter Shop ↗

Essential Tool

Must Have

OBD2 Scanner

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Related Diagnostic Codes

Other codes that may appear with P1231

P1229 Sequential Code

P1229: Fuel Pressure Regulator Control Circuit Low Input

Medium
P1230 Sequential Code

P1230: Fuel Pressure Regulator Control Circuit Low Input

Medium
P1232 Sequential Code

P1232: Fuel Pressure Regulator Control Circuit Low Input

Medium
P1233 Sequential Code

P1233: Fuel Pressure Regulator Control Circuit Low Input

Medium

💡 Why These Codes Are Related:

  • • Similar Issues: Same root cause or component failure
  • • Related Problems: Often occur together due to system interactions
  • • Sequential Codes: Progressive failure stages or multiple sensors
  • • Same System: Components within the same automotive system