P0302 Honda Hr-V
Cylinder 2 Misfire Detected · Powertrain Code · High · Repair: Moderate
What is P0302?
Misfire detected in cylinder 2. Typically caused by a worn spark plug, bad ignition coil, faulty fuel injector, or low compression in that cylinder.
When the Honda Hr-V triggers code P0302 (cylinder 2 misfire detected), it typically points to an issue in the powertrain system. This is a high severity code, so address it promptly to avoid further damage or safety concerns. Below you'll find the most common causes, symptoms, and repair options specific to the Honda Hr-V.
This repair is rated moderate, meaning some experience and specialty tools required.
Diagnostic data on this page is compiled from publicly available repair resources and technical service bulletins. Always have a qualified mechanic confirm the diagnosis before authorizing repairs on your Honda Hr-V.
Common Causes on Honda Hr-V
- Worn or fouled spark plug on cylinder 2 (NGK ILZKR7B11S OE)
- Failed ignition coil pack on cylinder 2
- Carbon buildup on intake valves (direct injection 1.5T and 2.0T)
- Low compression on cylinder 2 from worn valve seals
- Leaking fuel injector on cylinder 2
Symptoms
- Check Engine Light flashing (active misfire)
- Engine shaking or vibrating at idle
- Loss of power and hesitation
- Rough idle
- Increased emissions and fuel smell
Notes for Honda Hr-V
On 1.5T and 2.0T direct injection engines, carbon buildup on intake valves is a primary misfire cause after 50k miles — a walnut blast service every 60k miles is recommended.