← View Generic P0371 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

P0371: P0371: Ignition System Misfire

on 2021 Honda PASSPORT

Fix Cost
$100 - $500
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
✅ Yes
Save money
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 P0371 Mean on 2021 Honda PASSPORT?

A misfire in one or more cylinders is detected, affecting combustion efficiency and potentially causing decreased engine performance, rough idling, and decreased fuel efficiency.
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Symptoms

  • • Rough idling
  • • decreased engine performance
  • • decreased fuel efficiency
  • • engine misfires
  • • decreased power
  • • and decreased acceleration
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Common Causes

  • • Faulty spark plug
  • • faulty ignition coil
  • • faulty fuel injector
  • • clogged fuel filter
  • • faulty oxygen sensor
  • • or vacuum leaks
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How to Fix P0371 on 2021 Honda PASSPORT

1. Check and replace spark plugs if necessary. 2. Check and replace ignition coil if necessary. 3. Check and clean fuel injectors if necessary. 4. Check and replace fuel filter if necessary. 5. Check and replace oxygen sensor if necessary. 6. Check for vacuum leaks and repair if necessary.

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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 Specs

Parts for 2021 Honda PASSPORT

spark plugs Shop ↗ ignition coil Shop ↗ fuel injectors Shop ↗ fuel filter Shop ↗ oxygen sensor 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 P0371

P0369 Sequential Code

P0369: Ignition System Misfire

Medium
P0370 Sequential Code

P0370: Ignition System Misfire

Medium
P0372 Sequential Code

P0372: Ignition System Misfire

Medium
P0373 Sequential Code

P0373: Ignition System Misfire

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