← View Generic P1251 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2014 Nissan SENTRA

P1251: P1251: Fuel Pressure Regulator Control Circuit Low Input

on 2014 Nissan SENTRA

Fix Cost
$100 - $500
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
❌ No
Pro recommended
Your Vehicle
2014 Nissan
SENTRA
⚠️

Important for 2014 Nissan SENTRA Owners

Before starting repairs, verify which engine your 2014 Nissan SENTRA has. Check your VIN or engine code to ensure you order the correct parts.

📖 What Does P1251 Mean on 2014 Nissan SENTRA?

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 may be caused by a faulty fuel pressure regulator, a wiring issue, or a problem with the engine control module.
⚠️

Symptoms

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

  • • Faulty fuel pressure regulator
  • • wiring issue
  • • engine control module problem
  • • clogged fuel filter
🛠️

How to Fix P1251 on 2014 Nissan SENTRA

Check the fuel pressure regulator for proper operation, inspect the wiring for damage or corrosion, check the engine control module for any fault codes, replace the fuel filter if clogged

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Need Maintenance Info for Your SENTRA?

Get oil capacity, filter specs, and torque settings for your specific 2014 Nissan SENTRA.

View 2014 Nissan SENTRA Specs

Parts for 2014 Nissan SENTRA

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 P1251

P1249 Sequential Code

P1249: Fuel Pressure Regulator Control Circuit Low Input

Medium
P1250 Sequential Code

P1250: Fuel Pressure Regulator Circuit Malfunction

Medium
P1252 Sequential Code

P1252: Fuel Pump Control Circuit Malfunction

High
P1253 Sequential Code

P1253: 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