← Back to Search Severity: Medium

P0199

P0199: Fuel Pressure Regulator Control 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 P0199 Mean?

The fuel pressure regulator control circuit is receiving a low input signal, which can cause the fuel pressure to be too low, leading to poor engine performance and decreased fuel efficiency.
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Symptoms

  • Poor engine performance
  • decreased fuel efficiency
  • rough idle
  • stalling
  • and difficulty starting
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Common Causes

  • Faulty fuel pressure regulator
  • faulty fuel pressure regulator control circuit
  • clogged fuel filter
  • or low fuel pressure
Fix Guide
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Possible Solutions

1. Check the fuel pressure regulator for proper operation and replace if necessary. 2. Check the fuel pressure regulator control circuit for any signs of damage or corrosion and repair or replace as needed. 3. Check the fuel filter for clogs and replace if necessary. 4. Check the fuel pressure gauge for proper operation and calibration.

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Common Questions About P0199

Q

Can I drive with code P0199?

A

You can drive for a short time, but should address code P0199 soon to avoid worsening the problem or failing an emissions test.

Q

How much does it cost to fix P0199?

A

The estimated repair cost for code P0199 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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Related Diagnostic Codes

Other codes that may appear with P0199

💡 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