AutoCodes – Honda – P0301 2017 Honda CR-V

P0301 2017 Honda CR-V Code - No. 1 Cylinder Misfire Detected

Quick Answer

The crankshaft vibrates slightly when each cylinder fires. Common causes include Valve adjustment, Faulty spark plug #1, Faulty ignition coil #1. 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: P0301 2017 Honda CR-V indicates No. 1 Cylinder Misfire Detected.
Common causes: Common causes include Valve adjustment, Faulty spark plug #1, Faulty ignition coil #1.
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 483

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 P0301 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 P0301 2017 Honda CR-V - No. 1 Cylinder Misfire Detected - AutoCodes.com — P0301 2017 Honda CR-V Code - No. 1 Cylinder Misfire Detected

What does this mean?

What are the Possible Causes of the DTC P0301 2017 Honda CR-V?

Valve adjustment
Faulty spark plug #1
Faulty ignition coil #1
Clogged or faulty fuel injector #1
Intake air leak
Insufficient cylinder #1 compression
Incorrect fuel pressure

How to Fix the DTC P0301 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 P0301 code means that cylinder #1 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 #1. 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 P0301 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 P0301 2017 Honda CR-V code?

Need more information on how to fix the P0301 2017 Honda CR-V code? Get Access to Factory Service Manuals

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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 P0301 2017 Honda CR-V Code

1. What are the common symptoms of OBDII code P0301 (No. 1 Cylinder Misfire Detected) in a 2017 Honda CR-V?

- Common symptoms include rough idling, engine vibration, loss of power, poor fuel economy, and potentially an illuminated check engine light.

2. What are the possible causes of a P0301 misfire code in a 2017 Honda CR-V?

- Potential causes include faulty spark plugs, ignition coils, fuel injectors, vacuum leaks, low compression in the No. 1 cylinder, or issues with the engine's timing.

3. How can I diagnose the source of a cylinder misfire in my 2017 Honda CR-V with code P0301?

- Diagnostic steps may involve checking spark plugs, ignition coils, fuel injectors, compression in the affected cylinder, and performing a visual inspection for vacuum leaks or wiring issues.

4. Can driving with a P0301 misfire code in a 2017 Honda CR-V cause further damage?

- Continuing to drive with a misfire can potentially lead to damage to the catalytic converter, so it's advisable to address the issue promptly.

5. Is it safe to continue driving a 2017 Honda CR-V with a P0301 misfire code?

- While it may be possible to drive short distances with a misfire, prolonged driving can cause damage and should be avoided. It's best to address the issue as soon as possible.

6. How can I clear the P0301 misfire code on my 2017 Honda CR-V after making repairs?

- After repairing the underlying issue causing the misfire, you can clear the code using an OBDII scanner or by disconnecting the car's battery for a few minutes.

7. Are there any simple DIY fixes for a P0301 misfire code in a 2017 Honda CR-V?

- DIY fixes may include replacing spark plugs and ignition coils, checking and cleaning fuel injectors, and inspecting for visible vacuum leaks.

8. Should I take my 2017 Honda CR-V to a professional mechanic for a P0301 misfire code?

- If you are not experienced with engine diagnostics and repairs, it is recommended to take your vehicle to a professional mechanic to accurately diagnose and fix the issue.

9. Will a P0301 misfire code in a 2017 Honda CR-V affect overall engine performance?

- Yes, a misfire in the No. 1 cylinder can lead to reduced performance, decreased fuel efficiency, and potential drivability issues in your Honda CR-V.

10. How can I prevent a P0301 misfire code from recurring in my 2017 Honda CR-V?

- Regular maintenance, such as changing spark plugs and inspecting ignition components, along with addressing any underlying issues promptly, can help prevent the recurrence of a P0301 misfire code.