← View Generic P0145 Guide
Severity: Medium
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Vehicle-Specific Guide
This guide is customized for your 2021 Honda PASSPORT
P0145: P0145: Fuel Pressure Regulator Circuit Malfunction
on 2021 Honda PASSPORT
Fix Cost
$50 - $200
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 P0145 Mean on 2021 Honda PASSPORT?
The fuel pressure regulator circuit has malfunctioned, causing the fuel pressure to be outside the normal operating range.
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Symptoms
- • Poor engine performance
- • rough idle
- • decreased fuel efficiency
- • and possible engine stalling
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Common Causes
- • Faulty fuel pressure regulator
- • clogged fuel filter
- • or vacuum leaks
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How to Fix P0145 on 2021 Honda PASSPORT
1. Check and clean the fuel filter. 2. Inspect and repair vacuum leaks. 3. Replace the fuel pressure regulator if faulty.
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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 P0145
P0143
Sequential Code
P0143: Fuel Pressure Regulator Circuit Malfunction
Medium
P0144
Sequential Code
P0144: Fuel Pressure Regulator Circuit Malfunction
Medium
P0146
Sequential Code
P0146: Fuel Pressure Regulator Circuit Low Input
Medium
P0147
Sequential Code
P0147: Fuel Pressure Regulator 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