← View Generic P0028 Guide
Severity: Medium
🚗
Vehicle-Specific Guide
This guide is customized for your 2021 Honda PASSPORT
P0028: P0028: Fuel Injector Circuit Low Voltage Bank 1
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 P0028 Mean on 2021 Honda PASSPORT?
The fuel injector circuit voltage is low for Bank 1, indicating a problem with the fuel injector or its circuit.
⚠️
Symptoms
- • Poor engine performance
- • rough idle
- • decreased power
- • decreased fuel efficiency
- • engine stalling
🔍
Common Causes
- • Faulty fuel injector
- • clogged fuel filter
- • low fuel pressure
- • faulty fuel pump
- • wiring issues
🛠️
How to Fix P0028 on 2021 Honda PASSPORT
1. Check fuel pressure and filter, 2. Replace fuel injector, 3. Check and repair wiring, 4. Replace fuel pump if necessary
🔧
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 P0028
P0026
Sequential Code
P0026: Fuel Injector Circuit Low Voltage (Bank 1)
Medium
P0027
Sequential Code
P0027: Fuel Injector Circuit Low Voltage (Bank 1, Cylinder 2)
Medium
P0029
Sequential Code
P0029: Fuel Trim Malfunction (Bank 1 Sensor 1)
Medium
P0030
Sequential Code
P0030: Fuel Heated Oxygen Sensor (H2S) Heater Circuit Malfunction
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