← Back to Search Severity: Medium

P0164

P0164: Fuel Pressure Regulator Circuit Low Input

Fix Cost
$100 - $500
Parts & Labor
Difficulty
3/5
Moderate
1-2 hours
DIY Possible?
❌ No
Pro recommended
Category
Powertrain
System

📖 What Does P0164 Mean?

The fuel pressure regulator circuit is receiving a low input signal, indicating a problem with the fuel pressure regulator or its associated sensors.
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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
  • clogged fuel filter
  • low fuel pressure
  • or a malfunctioning fuel pressure sensor.
Fix Guide
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Possible Solutions

1. Check the fuel pressure regulator for blockages or damage. Replace if necessary. 2. Inspect and clean the fuel filter. Replace if necessary. 3. Check the fuel pressure using a scan tool or gauge. 4. Replace the fuel pressure sensor if necessary.

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Common Questions About P0164

Q

Can I drive with code P0164?

A

You can drive for a short time, but should address code P0164 soon to avoid worsening the problem or failing an emissions test.

Q

How much does it cost to fix P0164?

A

The estimated repair cost for code P0164 is between $100 and $500. This includes parts and labor for most makes and models.

Q

Is this code easy to fix myself?

A

This repair is considered moderate. It may require specialized tools or significant disassembly. Professional help is recommended if you aren't an experienced DIYer.

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Need a Pro?

Complex codes like P0164 can be tricky. Don't risk it if you're unsure.

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Related Diagnostic Codes

Other codes that may appear with P0164

💡 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