The 2022 Acura TLX offers two engine options: a 2.0-liter turbocharged 4-cylinder in standard models and a 3.0-liter turbocharged V6 in Type S variants. Only the Type S V6 includes cylinder 5 as a legitimate position. A P0305 diagnostic trouble code requires verification of your specific engine type.
Understanding P0305 by TLX Model
The P0305 code is only valid on TLX Type S models with the 3.0L twin-turbo V6. Standard TLX models with the 2.0L turbo-4 have only cylinders 1-4, making P0305 anomalous on those configurations.
Type S V6 Configuration
The 3.0L turbocharged V6 in the Type S produces 355 horsepower and features twin-scroll turbos. Cylinder 5 is positioned on one bank of this performance-oriented V6. The high output design places premium demands on ignition components.
Common Type S Misfire Causes
Cylinder 5 misfires on the Type S can result from ignition coil failure under boost stress, spark plug wear, fuel injector issues, or turbo-related concerns affecting boost delivery to that cylinder.
Model Verification
Before proceeding with cylinder 5 diagnosis, verify your TLX is Type S equipped. Standard TLX models showing P0305 indicate a diagnostic anomaly requiring different investigation.