← View Generic P1120 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2018 BMW X5

P1120: P1120: Fuel Pressure Regulator Control Circuit Low Input

on 2018 BMW X5

Fix Cost
$100 - $500
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
❌ No
Pro recommended
Your Vehicle
2018 BMW
X5
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Important for 2018 BMW X5 Owners

Before starting repairs, verify which engine your 2018 BMW X5 has. Check your VIN or engine code to ensure you order the correct parts.

📖 What Does P1120 Mean on 2018 BMW X5?

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 faulty fuel pressure regulator control module, or a wiring issue.
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Symptoms

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

  • • Faulty fuel pressure regulator
  • • faulty fuel pressure regulator control module
  • • wiring issue
  • • or a clogged fuel filter
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How to Fix P1120 on 2018 BMW X5

1. Check the fuel pressure regulator for any signs of damage or wear. Replace it if necessary. 2. Check the fuel pressure regulator control module for any signs of damage or wear. Replace it if necessary. 3. Check the wiring harness for any signs of damage or wear. Repair or replace it if necessary. 4. Check the fuel filter for any signs of clogging. Replace it if necessary.

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Need Maintenance Info for Your X5?

Get oil capacity, filter specs, and torque settings for your specific 2018 BMW X5.

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Parts for 2018 BMW X5

Fuel Pressure Regulator Shop ↗ Fuel Pressure Regulator Control Module Shop ↗ Wiring Harness Shop ↗ Fuel Filter Shop ↗

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OBD2 Scanner

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Related Diagnostic Codes

Other codes that may appear with P1120

P1118 Sequential Code

P1118: Fuel Pressure Regulator Control Circuit Low Input

Medium
P1119 Sequential Code

P1119: Fuel Pressure Regulator Control Circuit Low Input

Medium
P1121 Sequential Code

P1121: Fuel Pressure Regulator Control Circuit Low Input

Medium
P1122 Sequential Code

P1122: 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