The P0303 code in your 2022 Chevrolet Camaro means the engine control module has identified cylinder 3 as experiencing misfires above acceptable limits. This iconic American sports car offers the 2.0L Turbo four-cylinder, 3.6L V6, naturally aspirated 6.2L LT1 V8 in the SS, and supercharged 6.2L LT4 V8 in the ZL1. Each powertrain has unique characteristics affecting misfire diagnosis.
Cylinder 3 by Engine Configuration
The 2.0L Turbo's inline layout places cylinder 3 third from the front. V6 and V8 engines position cylinder 3 on the driver's side bank, second from the front. Understanding your engine's layout is essential for locating components during diagnosis.
High-Performance Demands
Camaro engines are tuned for performance, with outputs ranging from 275 horsepower (2.0T) to 650 horsepower (ZL1). These engines operate under greater stress than typical passenger vehicles. Ignition systems must deliver strong, consistent spark, especially under high-RPM and high-load conditions.
Common Misfire Causes
Spark plugs in performance applications wear faster, particularly with aggressive driving. Ignition coils fail from heat cycling and high-output demands. Fuel injectors in direct-injected engines can develop deposits or electrical issues. The turbocharged and supercharged engines have additional boost-system components that affect air-fuel mixture.
Carbon Buildup in Direct-Injected Engines
All Camaro gasoline engines use direct injection, which doesn't wash fuel across intake valves. Carbon deposits accumulate over time, potentially restricting airflow to cylinder 3 and affecting combustion quality.