← View Generic P0339 Guide Severity: Medium

🚗 Vehicle-Specific Guide

This guide is customized for your 2021 Honda PASSPORT

P0339: P0339: 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

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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 P0339 Mean on 2021 Honda PASSPORT?

A misfire detected in one or more cylinders, which can cause decreased engine performance, rough idling, and decreased fuel efficiency.

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Symptoms

• Rough idling
• decreased engine performance
• decreased fuel efficiency
• engine light on

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Common Causes

• Faulty spark plug
• ignition coil
• fuel injector
• or cylinder head issue

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How to Fix P0339 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. Perform a cylinder head compression test to identify any issues.

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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 ↗ cylinder head gasket 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 P0339

P0337 Sequential Code

💡 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