A P0302 code on your 2022 Lexus NX indicates that the engine control module has detected cylinder 2 misfires beyond acceptable parameters. The redesigned NX features new powertrains requiring updated diagnostic approaches.
2022 NX Powertrain Revolution
The 2022 Lexus NX was completely redesigned with new powertrain options: the NX 350 with a 2.4L turbocharged four-cylinder, the NX 350h with a 2.5L hybrid system, and the NX 450h+ plug-in hybrid. Each engine configuration has unique characteristics.
2.4L Turbo Analysis
The NX 350's turbocharged engine operates under boost pressure, increasing cylinder demands. Boost leaks, wastegate issues, or ignition components struggling under pressure can cause cylinder-specific misfires. The four-cylinder design makes each cylinder critical.
Hybrid System Considerations
The NX 350h and 450h+ use a 2.5L engine with electric assistance. Misfires affect combustion engine operation specifically. The hybrid system's engine start-stop cycling may influence component wear patterns.
Four-Cylinder Dynamics
With four cylinders, each contributes 25% of power output. A cylinder 2 misfire creates noticeable rough running and vibration. The driver immediately perceives the irregular engine operation.
Diagnostic Methodology
Identify your specific NX variant before beginning diagnosis. Turbo models require boost system inspection, while hybrids need attention to system integration. Factory diagnosis ensures proper procedures.