A P0303 code in your 2022 Hyundai Santa Fe indicates the engine control module has detected persistent misfires at cylinder 3. The redesigned 2022 Santa Fe offers the 2.5L Smartstream four-cylinder (191 horsepower) and the more powerful 2.5L turbocharged four-cylinder (281 horsepower). Understanding your specific powertrain ensures accurate diagnosis of this midsize SUV.
Cylinder 3 Configuration
Both Santa Fe engines are inline four-cylinders with cylinder 3 positioned third from the front of the engine. The transverse mounting places it toward the firewall, standard for Hyundai's front-wheel-drive-based SUV platform.
Engine Options
The naturally aspirated 2.5L Smartstream provides smooth, efficient power for daily driving. The 2.5L turbo adds forced induction for significantly improved performance, operating under higher cylinder pressures that demand more from ignition components. Both engines use direct fuel injection technology.
Common P0303 Causes at Two to Three Years
At this relatively young age, most misfires result from ignition component issues or fuel quality problems. Manufacturing variations can cause early coil or plug failure. Contaminated fuel affects combustion. Software calibration updates may address operational sensitivity. Boost leaks in turbocharged models disrupt air-fuel mixture.
Direct Injection Considerations
Both engines use direct fuel injection, which improves efficiency but allows carbon deposits on intake valves. While significant buildup takes considerable mileage, it's a long-term maintenance consideration for these engines.