← View Generic P0238 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

P0238: P0238: Fuel Injector Circuit Low Voltage

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
⚠️

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 P0238 Mean on 2021 Honda PASSPORT?

The fuel injector circuit is experiencing low voltage, which can cause the fuel injector to malfunction or not function at all.
⚠️

Symptoms

  • • Poor engine performance
  • • rough idle
  • • decreased power
  • • decreased fuel efficiency
  • • engine stalling
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Common Causes

  • • Faulty fuel injector
  • • faulty fuel injector circuit
  • • low battery voltage
  • • faulty fuel pump
  • • faulty fuel pressure regulator
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How to Fix P0238 on 2021 Honda PASSPORT

1. Check and clean the fuel injector circuit for any debris or corrosion. 2. Check the fuel injector for any signs of wear or damage. 3. Check the fuel pump for proper operation. 4. Check the fuel pressure regulator for proper operation. 5. Replace the fuel injector 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 Specs

Parts for 2021 Honda PASSPORT

Fuel injector Shop ↗ Fuel injector circuit Shop ↗ Fuel pump Shop ↗ Fuel pressure regulator Shop ↗

Essential Tool

Must Have

OBD2 Scanner

Read & clear codes on your 2021 Honda PASSPORT

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🔗

Related Diagnostic Codes

Other codes that may appear with P0238

P0236 Sequential Code

P0236: Fuel Injector Circuit Malfunction

Medium
P0237 Sequential Code

P0237: Fuel Injector Circuit Malfunction

Medium
P0239 Sequential Code

P0239: Fuel Injector Circuit Malfunction

Medium
P0240 Sequential Code

P0240: Fuel Injector 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