AutoCodes – Honda – P0302 2017 Honda CR-V

P0302 2017 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 2017 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 445

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 2017 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 2017 Honda CR-V - No. 2 Cylinder Misfire Detected - AutoCodes.com — P0302 2017 Honda CR-V Code - No. 2 Cylinder Misfire Detected

What does this mean?

What are the Possible Causes of the DTC P0302 2017 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 2017 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 2017 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 2017 Honda CR-V code?

Need more information on how to fix the P0302 2017 Honda CR-V code? Get Access to Factory Service Manuals

Need Help with the 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 2017 Honda CR-V Code

1. What are the common symptoms of OBDII code P0302 (No. 2 Cylinder Misfire Detected) in a 2017 Honda CR-V?

- Common symptoms include engine misfiring, rough idling, loss of power, and potential fuel smell from the exhaust.

2. What are the possible causes of a P0302 code in a 2017 Honda CR-V?

- Possible causes of a P0302 code include faulty ignition coil, spark plug, fuel injector, vacuum leak, or low compression in the No. 2 cylinder.

3. How can I diagnose the source of a cylinder misfire in a 2017 Honda CR-V?

- You can diagnose the issue by performing a thorough inspection of the spark plugs, ignition coils, fuel injectors, and checking for vacuum leaks using a scan tool.

4. Can driving with a P0302 code in a 2017 Honda CR-V cause further damage?

- Continuing to drive with a misfiring cylinder can potentially lead to damage to the catalytic converter, so it is recommended to address the issue promptly.

5. What are some repair tips for fixing a P0302 code in a 2017 Honda CR-V?

- Repair tips include replacing the spark plug, ignition coil, or fuel injector for the No. 2 cylinder, checking for vacuum leaks, and performing a compression test.

6. Is it safe to reset the OBDII code P0302 in a 2017 Honda CR-V without fixing the underlying issue?

- It is not recommended to simply reset the code without addressing the root cause of the misfire, as it may lead to the problem persisting and potentially causing further damage.

7. How much does it typically cost to fix a P0302 code in a 2017 Honda CR-V?

- The cost of fixing a P0302 code can vary depending on the exact cause of the misfire, but it may range from a few hundred to over a thousand dollars including parts and labor.

8. Can a DIY enthusiast fix a P0302 code in a 2017 Honda CR-V, or is it best left to professionals?

- While some basic troubleshooting like checking spark plugs can be done by DIY enthusiasts, diagnosing and repairing complex issues related to a P0302 code may be best left to professionals.

9. How often does a P0302 code occur in a 2017 Honda CR-V, and is it a common issue?

- P0302 codes can occur in any vehicle, including a 2017 Honda CR-V, but it may not be considered a common issue unless specific factors contribute to the misfire.

10. Are there any preventive measures to avoid encountering a P0302 code in a 2017 Honda CR-V?

- Regular maintenance such as timely spark plug replacements, using quality fuel, and addressing any engine performance issues promptly can help prevent the occurrence of a P0302 code.