← View Generic P1231 Guide Severity: Medium

🚗 Vehicle-Specific Guide

This guide is customized for your 2014 Nissan SENTRA

P1231: P1231: 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

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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 P1231 Mean on 2014 Nissan SENTRA?

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.

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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

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How to Fix P1231 on 2014 Nissan SENTRA

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

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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

Read & clear codes on your 2014 Nissan SENTRA

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Related Diagnostic Codes

Other codes that may appear with P1231

P1229 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