A P0302 code on your 2022 Buick Encore GX indicates that the engine control module has detected cylinder 2 misfires beyond acceptable parameters. This compact crossover features turbocharged three-cylinder engines requiring specific attention.
2022 Encore GX Engine Options
The 2022 Buick Encore GX offered two turbocharged three-cylinder engines: a 1.2L producing 137 horsepower and an optional 1.3L making 155 horsepower. Both are compact, efficient designs.
Three-Cylinder Engine Dynamics
With only three cylinders, each contributes approximately 33% of power output. A cylinder 2 misfire significantly impacts smooth operation—rough idle, vibration, and power loss are immediately noticeable.
Turbocharger Function
Both engines are turbocharged for adequate power from small displacement. Boost pressure affects combustion, and boost leaks can create lean conditions causing misfires. The charge air system requires inspection.
Direct Injection Technology
These three-cylinder engines use direct fuel injection, delivering fuel at high pressure into the combustion chamber. This efficient design can contribute to carbon buildup on intake valves over time.
Compact Crossover Reliability
The Encore GX serves as efficient urban transportation. Prompt misfire repair ensures reliable daily driving and maintains fuel efficiency.