The P0303 diagnostic trouble code on your 2022 Acura TLX indicates the engine control module has detected consistent misfires in cylinder 3. The second-generation TLX offers turbocharged four-cylinder and V6 powertrains.
2022 TLX Engine Options
The 2022 TLX features the 2.0L turbocharged four-cylinder producing 272 horsepower, while the Type S uses a 3.0L twin-turbo V6 with 355 horsepower. On the inline-4, cylinder 3 is third from the front. The V6 positions cylinder 3 on the driver's side bank.
Common Causes
- Ignition Coil Failure: Turbo applications stress ignition components
- Spark Plug Issues: Turbocharged engines require specific heat range plugs
- Boost System Leaks: Both engines are turbo-sensitive to intake leaks
- Fuel Injector Problems: Direct injection deposits or failures
- Carbon Buildup: GDI technology causes valve carbon accumulation
Diagnostic Approach
Identify your engine type first. Use Acura diagnostic equipment for turbo-specific data. Monitor boost pressure and misfire counts. Test ignition components systematically through swap testing.
Repair Solutions
Replace failed ignition coils with OEM-equivalent components. Install properly specified spark plugs for turbo applications. Repair boost system leaks. Address carbon buildup through professional cleaning services.