← View Generic P1401 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

P1401: P1401: Fuel Pressure Regulator Control Circuit Low Input

on 2021 Honda PASSPORT

Fix Cost
$100 - $500
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
❌ No
Pro recommended
Your Vehicle
2021 Honda
PASSPORT
⚠️

Important for 2021 Honda PASSPORT Owners

Before starting repairs, verify which engine your 2021 Honda PASSPORT has. Check your VIN or engine code to ensure you order the correct parts.

📖 What Does P1401 Mean on 2021 Honda PASSPORT?

The fuel pressure regulator control circuit low input is a manufacturer-specific code that indicates a problem with the fuel pressure regulator's control circuit. This code is specific to Ford vehicles. It means that the fuel pressure regulator is not receiving the correct signal from the engine control module (ECM) to regulate fuel pressure.
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Symptoms

  • • Poor engine performance
  • • rough idle
  • • decreased fuel efficiency
  • • and a possible check engine light
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Common Causes

  • • Faulty fuel pressure regulator
  • • faulty fuel pressure regulator control circuit
  • • or a problem with the ECM
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How to Fix P1401 on 2021 Honda PASSPORT

1. Check the fuel pressure regulator for any signs of damage or wear. Replace it if necessary. 2. Check the fuel pressure regulator control circuit for any signs of damage or wear. Repair or replace it if necessary. 3. Check the ECM for any faults or errors. Clear any trouble codes and retest the system.

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Need Maintenance Info for Your PASSPORT?

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Parts for 2021 Honda PASSPORT

Fuel Pressure Regulator Shop ↗ Fuel Pressure Regulator Control Circuit Shop ↗

Essential Tool

Must Have

OBD2 Scanner

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Related Diagnostic Codes

Other codes that may appear with P1401

P1399 Sequential Code

P1399: Fuel Pressure Regulator Control Circuit Low

Medium
P1400 Sequential Code

P1400: Fuel Pressure Sensor Circuit Malfunction

Medium
P1402 Sequential Code

P1402: Fuel Pressure Regulator Control Circuit Low Input

Medium
P1403 Sequential Code

P1403: 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