P0303 2019 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 2019 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 2019 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 2019 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 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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0303 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 P0303 2019 Honda CR-V code?
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Frequently Asked Questions about P0303 2019 Honda CR-V Code
1. What does OBDII code P0303 mean on a 2019 Honda CR-V?
P0303 indicates a misfire has been detected in cylinder No. 3 of the engine.
2. What are the common symptoms of a P0303 code on a 2019 Honda CR-V?
Symptoms may include rough idling, decreased engine performance, poor fuel economy, engine hesitation, or the Check Engine Light illuminating.
3. What causes a P0303 code on a 2019 Honda CR-V?
Possible causes include a faulty spark plug, a bad ignition coil, a clogged fuel injector, low engine compression, or an air/fuel mixture issue.
4. Can I drive my 2019 Honda CR-V with a P0303 code?
While the vehicle may still be drivable, continuing to drive with a misfire can cause engine damage or damage to the catalytic converter.
5. How do I diagnose a P0303 code on a 2019 Honda CR-V?
Start by inspecting the spark plug and ignition coil for cylinder No. 3, checking for vacuum leaks, testing the fuel injector, and performing a compression test if necessary.
6. How do I fix a P0303 code on a 2019 Honda CR-V?
Common fixes include replacing the spark plug, ignition coil, or fuel injector for cylinder No. 3, repairing vacuum leaks, or addressing low compression if present.
7. How much does it cost to repair a P0303 code on a 2019 Honda CR-V?
Repair costs vary depending on the issue, ranging from $100–$300 for a spark plug or ignition coil replacement to higher costs if more advanced repairs like compression issues are involved.
8. Can a dirty air filter cause a P0303 code on a 2019 Honda CR-V?
While unlikely, a severely clogged air filter can contribute to poor air/fuel mixture, which might exacerbate misfires.
9. Will clearing the code with an OBDII scanner fix the P0303 issue?
Clearing the code will turn off the Check Engine Light temporarily, but it will not resolve the underlying problem causing the misfire.
10. How often should I replace spark plugs to avoid a P0303 code on a 2019 Honda CR-V?
Honda recommends replacing spark plugs every 100,000 miles under normal driving conditions to maintain engine performance and prevent misfires.
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