A P0302 code on your 2022 Acura RDX indicates that the engine control module has detected cylinder 2 misfires beyond acceptable parameters. The RDX's turbocharged four-cylinder requires specific diagnostic attention.
2022 RDX Powertrain
The 2022 Acura RDX is powered by a 2.0L turbocharged four-cylinder engine producing 272 horsepower. This efficient yet powerful engine features direct injection and i-VTEC variable valve timing for optimal performance.
Four-Cylinder Sensitivity
With only four cylinders, each contributes 25% of engine power. A cylinder 2 misfire significantly affects smooth operation—rough idle, vibration, and reduced power are immediately noticeable to the driver.
Turbocharger Influence
The turbocharger pressurizes intake air for increased power. Boost leaks, wastegate problems, or intercooler issues can affect the air-fuel ratio in individual cylinders. Check the entire charge air path for integrity.
Direct Injection Considerations
The 2.0L turbo uses direct fuel injection, which can contribute to intake valve carbon buildup over time. This becomes more relevant at higher mileage but can cause misfires when deposits become significant.
Ignition System Focus
Turbocharged engines place higher demands on ignition components due to increased cylinder pressure. Spark plugs and ignition coils must deliver adequate energy under boost conditions. These are primary suspects for misfire diagnosis.