P0301 Honda Cr-V
Cylinder 1 Misfire Detected · Powertrain Code · High · Repair: Easy
What is P0301?
Misfire detected in cylinder 1. Typically caused by a worn spark plug, bad ignition coil, faulty fuel injector, or low compression in that cylinder.
When the Honda Cr-V triggers code P0301 (cylinder 1 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 Cr-V.
This repair is rated easy, meaning basic tools, no lift needed.
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 Cr-V.
Common Causes on Honda Cr-V
- Ignition coil failure on cylinder 1 on 1.5T, 2.0T, or 3.5L V6
- Fuel injector deposit buildup from GDI carbon accumulation
- Spark plug worn or fouled from oil or fuel contamination
- Vacuum leak at intake manifold or PCV system
Symptoms
- Rough idle with noticeable engine vibration
- Engine shaking or vibration especially at idle
- Loss of power during acceleration
- Check engine light flashing (indicating catalytic converter damage risk)
- Poor fuel economy from unburned fuel
- Unburned fuel smell from exhaust
Notes for Honda Cr-V
CR-V 1.5T GDI injector deposits are common; consider fuel system cleaner as preventive maintenance.