A P0303 diagnostic code on your 2022 Acura Integra indicates the engine control module has detected repeated misfires in cylinder 3. The revived Integra features Honda's efficient 1.5L turbocharged four-cylinder engine.
1.5L Turbo Engine Layout
The 2022 Integra uses the L15CA 1.5L turbocharged direct-injection four-cylinder producing 200 horsepower (manual) or 200 horsepower (CVT). Cylinder 3 is the third from the front on this inline-4 configuration.
Common Causes
- Ignition Coil Failure: Turbo boost increases ignition demands
- Spark Plug Issues: Turbo engines require specific plug specifications
- Boost System Leaks: Intake and boost pipe leaks cause misfires
- Fuel Injector Problems: Direct injection deposits or failures
- Carbon Buildup: GDI technology leads to intake valve carbon
Diagnostic Approach
Use an Acura/Honda compatible scanner for turbo-specific data. Monitor boost pressure, fuel trim, and misfire counts. Check for vacuum and boost leaks using smoke testing. Test ignition components systematically.
Repair Solutions
Replace failed ignition coils with OEM-equivalent parts. Install Acura-specified spark plugs for turbo applications. Repair boost system leaks. Address carbon buildup through professional intake cleaning.