The P0303 diagnostic code on your 2020 Honda Ridgeline indicates that the engine control module has detected cylinder 3 misfires exceeding acceptable thresholds. This midsize truck features Honda's proven V6 engine.
2020 Ridgeline Powertrain
The 2020 Honda Ridgeline is powered by a 3.5L V6 engine producing 280 horsepower. This naturally aspirated engine provides smooth power suited to the Ridgeline's truck duties.
V6 Cylinder Configuration
In Honda's V6, cylinder 3 is located on one bank. Bank-specific issues including fuel trim imbalances should be considered along with individual cylinder components.
Direct Injection Technology
The 3.5L V6 uses direct fuel injection for efficiency. This design can contribute to carbon buildup on intake valves over time, potentially affecting combustion.
Truck Duty Considerations
The Ridgeline handles towing and hauling tasks. Misfires under load indicate potentially more serious issues than idle-only misfires. Document when symptoms occur.
Honda V6 Reliability
Honda's 3.5L V6 has an excellent reliability track record. Address misfires promptly to maintain this dependability.