AutoCodes – Honda – P0302 2019 Honda CR-V

P0302 2019 Honda CR-V Code - No. 2 Cylinder Misfire Detected

Quick Answer

The crankshaft vibrates slightly when each cylinder fires. Common causes include Valve adjustment, Faulty spark plug #2, Faulty ignition coil #2. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P0302 2019 Honda CR-V indicates No. 2 Cylinder Misfire Detected.
Common causes: Common causes include Valve adjustment, Faulty spark plug #2, Faulty ignition coil #2.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 406

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 16, 2023

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0302 2019 Honda CR-V Description

The crankshaft vibrates slightly when each cylinder fires. If a misfire occurs, the crankshaft rotation speed changes rapidly. The Powertrain Control Module (PCM) monitors the crankshaft rotation speed based on the output pulses from the Crankshaft Position (CKP) Sensor. By monitoring changes in the crankshaft rotation speed, the PCM counts the number of misfires and determines which cylinder is misfiring. If a misfire is detected, a Diagnostic Trouble Code (DTC) is stored.
There are two types of misfire detection: Type 1: When the number of misfires per 200 engine revolutions reaches the level that can damage the three-way catalyst (TWC), a DTC is stored and the MIL blinks. Type 2: When the number of misfires per 1,000 engine revolutions reaches the level that affects exhaust emissions but is not severe enough to immediately damage the catalyst, a DTC is stored, and the MIL comes on.

OBDII Code P0302 2019 Honda CR-V - No. 2 Cylinder Misfire Detected - AutoCodes.com — P0302 2019 Honda CR-V Code - No. 2 Cylinder Misfire Detected

What does this mean?

What are the Possible Causes of the DTC P0302 2019 Honda CR-V?

Valve adjustment
Faulty spark plug #2
Faulty ignition coil #2
Clogged or faulty fuel injector #2
Intake air leak
Insufficient cylinder #2 compression
Incorrect fuel pressure

How to Fix the DTC P0302 2019 Honda CR-V?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

The P0302 code means that cylinder #2 is misfiring or is randomly misfiring. Start by checking for intake leaks and if no leaks are found the next step is to replace the spark plugs on cylinder #2. If the problem persists more tests need to be done to diagnose the problem, see "Possible Causes".

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0302 2019 Honda CR-V code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0302 2019 Honda CR-V code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0302 2019 Honda CR-V Code

1. What does OBDII code P0302 mean on a 2019 Honda CR-V?

Code P0302 indicates a misfire has been detected in cylinder No. 2 of the engine.

2. What are the symptoms of a P0302 code on a 2019 Honda CR-V?

Common symptoms include rough idling, reduced engine performance, hesitation during acceleration, poor fuel efficiency, and the check engine light turning on.

3. What causes cylinder No. 2 to misfire and trigger a P0302 code?

Common causes include a faulty spark plug, bad ignition coil, clogged fuel injector, vacuum leaks, low cylinder compression, or issues with the fuel system.

4. Can I drive my 2019 Honda CR-V with a P0302 code?

Driving with a P0302 code is not recommended as it can lead to further engine damage, reduced performance, and potential catalytic converter issues.

5. How do I fix a P0302 code on a 2019 Honda CR-V?

Fixing this code typically involves replacing the spark plug or ignition coil for cylinder No. 2, cleaning or replacing the fuel injector, or addressing any vacuum leaks or compression issues.

6. How can I diagnose a P0302 code on my 2019 Honda CR-V?

Start by inspecting the spark plug, ignition coil, and fuel injector for cylinder No. 2. You may also perform a compression test and use a scan tool to check for related codes.

7. How much does it cost to repair a P0302 code?

Repair costs vary but typically range from $100 to $300 for spark plug or ignition coil replacement. More extensive repairs, like addressing compression issues, can cost significantly more.

8. Can a dirty air filter cause a P0302 code on a 2019 Honda CR-V?

While unlikely, a clogged air filter can contribute to engine performance issues, which might exacerbate a misfire. Replacing it may help as part of routine maintenance.

9. What happens if I ignore a P0302 code?

Ignoring this code can lead to engine damage, reduced fuel efficiency, and potential damage to the catalytic converter, resulting in costly repairs.

10. Will replacing all spark plugs fix a P0302 code?

Replacing all spark plugs can help if the issue is due to worn-out plugs, but you should specifically inspect and address the condition of the spark plug in cylinder No. 2.