← View Generic P1171 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

P1171: P1171: Fuel Pressure Regulator Control Circuit Low Input

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$100 - $500
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
❌ No
Pro recommended
Your Vehicle
2020 Chevrolet
SILVERADO 1500 PICKUP
⚠️

Important for 2020 Chevrolet SILVERADO 1500 PICKUP Owners

Before starting repairs, verify which engine your 2020 Chevrolet SILVERADO 1500 PICKUP has. Check your VIN or engine code to ensure you order the correct parts.

📖 What Does P1171 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

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.
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Symptoms

  • • Rough 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
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How to Fix P1171 on 2020 Chevrolet SILVERADO 1500 PICKUP

Check the fuel pressure regulator for proper operation and replace if necessary. Check the wiring for any damage or corrosion and repair as needed. Check the engine control module for any faults and clear any trouble codes. Replace the fuel filter if it's clogged.

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Need Maintenance Info for Your SILVERADO 1500 PICKUP?

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Parts for 2020 Chevrolet SILVERADO 1500 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 P1171

P1169 Sequential Code

P1169: Fuel Pressure Regulator Control Circuit Low Input

Medium
P1170 Sequential Code

P1170: Fuel Pressure Regulator Control Circuit Low Input

Medium
P1172 Sequential Code

P1172: Fuel Pressure Regulator Control Circuit Low Input

Medium
P1173 Sequential Code

P1173: 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