← View Generic P1338 Guide
Severity: Medium
🚗
Vehicle-Specific Guide
This guide is customized for your 2021 Honda PASSPORT
P1338: P1338: Fuel Pressure Regulator Control Circuit Low
on 2021 Honda PASSPORT
Fix Cost
$100 - $500
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
❌ No
Pro recommended
Your Vehicle
2021 Honda
PASSPORT
⚠️
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 P1338 Mean on 2021 Honda PASSPORT?
The fuel pressure regulator control circuit is low, indicating a problem with the fuel pressure regulator or its circuit. This code is specific to Ford vehicles. (Ford)
⚠️
Symptoms
- • Rough idle
- • decreased power
- • poor fuel economy
- • engine stalling
🔍
Common Causes
- • Faulty fuel pressure regulator
- • clogged fuel filter
- • low fuel pressure
- • faulty fuel pump
🛠️
How to Fix P1338 on 2021 Honda PASSPORT
1. Check fuel pressure regulator for blockages or damage. Replace if necessary. 2. Inspect and clean fuel filter. Replace if necessary. 3. Check fuel pressure. If low, replace fuel pump.
🔧
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
🔗
Related Diagnostic Codes
Other codes that may appear with P1338
P1336
Sequential Code
P1336: Fuel Pressure Regulator Control Circuit Low Input
Medium
P1337
Sequential Code
P1337: Fuel Pressure Regulator Control Circuit Malfunction
Medium
P1339
Sequential Code
P1339: Fuel Pressure Regulator Control Circuit Low Input
Medium
P1340
Sequential Code
P1340: 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