P0303 2017 Honda CR-V Code - No. 3 Cylinder Misfire Detected
Quick Answer
The crankshaft vibrates slightly when each cylinder fires. Common causes include Valve adjustment, Faulty spark plug #3, Faulty ignition coil #3. 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
- P0303 2017 Honda CR-V indicates No. 3 Cylinder Misfire Detected.
- Common causes
- Common causes include Valve adjustment, Faulty spark plug #3, Faulty ignition coil #3.
- 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.
Code P0303 2017 Honda CR-V Description
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.
What are the Possible Causes of the DTC P0303 2017 Honda CR-V?
- Valve adjustment
- Faulty spark plug #3
- Faulty ignition coil #3
- Clogged or faulty fuel injector #3
- Intake air leak
- Insufficient cylinder #3 compression
- Incorrect fuel pressure
How to Fix the DTC P0303 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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0303 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 P0303 2017 Honda CR-V code?
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Frequently Asked Questions about P0303 2017 Honda CR-V Code
1. What does the OBDII code P0303 mean on a 2017 Honda CR-V?
P0303 indicates a misfire has been detected in cylinder No. 3.
2. What are the symptoms of a P0303 code on a 2017 Honda CR-V?
Common symptoms include rough idling, poor acceleration, decreased fuel efficiency, and an illuminated Check Engine Light.
3. What causes the P0303 code in a 2017 Honda CR-V?
Potential causes include a faulty spark plug, ignition coil failure, a clogged fuel injector, low cylinder compression, or a vacuum leak near cylinder No. 3.
4. Can I drive my 2017 Honda CR-V with a P0303 code?
Driving with a P0303 code for an extended period can damage the engine or catalytic converter, so it is best to address the issue promptly.
5. How do I fix the P0303 code on my 2017 Honda CR-V?
Start by inspecting and replacing the spark plug and ignition coil for cylinder No. 3. If the issue persists, check the fuel injector and test for compression or vacuum leaks.
6. How can I diagnose the P0303 code on a 2017 Honda CR-V?
Use an OBDII scanner to verify the code, then inspect the spark plug, ignition coil, fuel injector, and cylinder compression for any issues.
7. How much does it cost to fix the P0303 code on a 2017 Honda CR-V?
Costs vary but typically range from $50-$150 for spark plug or ignition coil replacement, with higher costs if fuel injectors or internal engine repairs are needed.
8. Can a dirty air filter cause a P0303 code in a 2017 Honda CR-V?
A severely clogged air filter can contribute to engine misfires, although it is less likely to directly trigger a P0303 code.
9. Will clearing the P0303 code fix the problem on my 2017 Honda CR-V?
Clearing the code will reset the Check Engine Light temporarily, but the underlying issue must be resolved to prevent the code from returning.
10. Can bad fuel cause a P0303 code on a 2017 Honda CR-V?
Yes, contaminated or low-octane fuel can cause misfires, including in cylinder No. 3, and trigger a P0303 code.
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