📖 What Does P1138 Mean?
Symptoms
- • Poor engine performance
- • rough idle
- • decreased fuel efficiency
- • engine stalling
Common Causes
- • Faulty fuel pressure regulator
- • fuel pressure regulator control circuit malfunction
- • wiring issue
- • clogged fuel filter
Possible Solutions
1. Check the fuel pressure regulator for proper operation and clean or replace it if necessary. 2. Inspect the fuel pressure regulator control circuit for any signs of damage or corrosion and repair or replace it if necessary. 3. Check the wiring harness for any signs of damage or corrosion and repair or replace it if necessary. 4. Check the fuel filter for any signs of clogging and replace it if necessary.
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❓ Common Questions About P1138
Can I drive with code P1138?
You can drive for a short time, but should address code P1138 soon to avoid worsening the problem or failing an emissions test.
How much does it cost to fix P1138?
The estimated repair cost for code P1138 is between $100 and $500. This includes parts and labor for most makes and models.
Is this code easy to fix myself?
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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View Best Sellers ↗Related Diagnostic Codes
Other codes that may appear with P1138
P1136: Fuel Pressure Regulator Control Circuit Low Input
P1137: Fuel Pressure Regulator Control Circuit Low Input
P1139: Fuel Pressure Regulator Control Circuit Low Input
P1140: Fuel Pressure Regulator Control Circuit Low Input
💡 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