← View Generic P1394 Guide
Severity: Medium
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Vehicle-Specific Guide
This guide is customized for your 2021 Honda PASSPORT
P1394: P1394: Fuel Pressure Regulator Control Circuit Low
on 2021 Honda PASSPORT
Fix Cost
$150 - $300
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
❌ No
Pro recommended
Your Vehicle
2021 Honda
PASSPORT
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Important for 2021 Honda PASSPORT Owners
Before starting repairs, verify which engine your 2021 Honda PASSPORT has. Check your VIN or engine code to ensure you order the correct parts.
📖 What Does P1394 Mean on 2021 Honda PASSPORT?
The fuel pressure regulator control circuit is low, indicating a problem with the fuel pressure regulator or its associated wiring. (Toyota)
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Symptoms
- • Rough idle
- • decreased power
- • poor fuel economy
- • engine stalling
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Common Causes
- • Faulty fuel pressure regulator
- • clogged fuel filter
- • low fuel pressure
- • wiring issues
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How to Fix P1394 on 2021 Honda PASSPORT
Replace the fuel pressure regulator, check and clean the fuel filter, inspect and repair wiring issues
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Need Maintenance Info for Your PASSPORT?
Get oil capacity, filter specs, and torque settings for your specific 2021 Honda PASSPORT.
View 2021 Honda PASSPORT SpecsParts for 2021 Honda PASSPORT
Essential Tool
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Related Diagnostic Codes
Other codes that may appear with P1394
P1392
Sequential Code
P1392: Fuel Pressure Regulator Control Circuit Low Input
Medium
P1393
Sequential Code
P1393: Fuel Pressure Regulator Control Circuit Low Input
Medium
P1395
Sequential Code
P1395: Fuel Pressure Regulator Control Circuit Low
Medium
P1396
Sequential Code
P1396: 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