← View Generic P1391 Guide Severity: Medium

🚗 Vehicle-Specific Guide

This guide is customized for your 2019 Ford F150 PICKUP

P1391: P1391: 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 P1391 Mean on 2019 Ford F150 PICKUP?

The fuel pressure regulator control circuit low input is a common issue in Ford vehicles, indicating a problem with the fuel pressure regulator or its associated wiring.

⚠️

Symptoms

• Rough idle
• decreased fuel efficiency
• poor engine performance

🔍

Common Causes

• Faulty fuel pressure regulator
• clogged fuel filter
• low fuel pressure
• wiring issues

🛠️

How to Fix P1391 on 2019 Ford F150 PICKUP

Check fuel pressure regulator for blockages or damage, replace if necessary; inspect and clean fuel filter; check fuel pressure and adjust if necessary; inspect wiring for damage or corrosion and repair if necessary.

🔧

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

Read & clear codes on your 2019 Ford F150 PICKUP

Shop Scanners ↗

🔗

Related Diagnostic Codes

Other codes that may appear with P1391

P1389 Sequential Code

💡 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