The 2022 Hyundai Tucson setting P0302 indicates a cylinder 2 misfire in the redesigned fourth-generation model. The Tucson's Smartstream engines feature advanced technology requiring systematic diagnosis when misfires occur.
Tucson Smartstream Engines
The 2022 Tucson offers 2.5-liter naturally aspirated, 1.6-liter turbocharged, and hybrid powertrains. Cylinder 2 sits second from the timing chain end. The Smartstream engines feature Continuously Variable Valve Duration (CVVD) technology affecting valve timing.
Cylinder 2 Misfire Symptoms
A single-cylinder misfire produces consistent, rhythmic roughness at idle. The tachometer may appear unsteady. Power feels diminished, particularly during acceleration. The check engine light illuminates and may flash during severe misfires.
Ignition System Diagnosis
The coil-on-plug ignition places individual coils atop each spark plug. Swap the cylinder 2 coil with another—if the misfire moves, you've identified the failed coil. Check spark plug condition for wear, gap, and deposits.
CVVD System Consideration
The Smartstream engine's Continuously Variable Valve Duration system adjusts valve opening time. CVVD issues could potentially affect individual cylinder performance. System faults typically generate their own codes but may contribute to misfire conditions.
Fuel Injector Testing
Direct injection fuel injectors can develop clogging or spray pattern issues. Use diagnostic equipment to perform injector balance testing. Compare cylinder 2's response to other cylinders.
Repair Costs
Ignition coil replacement costs $100-200 at Hyundai dealers. Spark plug service runs $150-250. Fuel injector replacement ranges $250-500 per injector.