A P0302 code on your 2020 Ford Ranger indicates the PCM detected misfires in cylinder 2. The mid-size Ranger uses the 2.3L EcoBoost 4-cylinder engine, a proven turbocharged unit requiring proper diagnosis.
Ranger's 2.3L EcoBoost
The 2020 Ranger exclusively offers the 2.3L EcoBoost, producing 270 hp and 310 lb-ft of torque. Cylinders are numbered 1-4 from front to rear, making cylinder 2 the second position from the radiator.
Common P0302 Causes
On the Ranger's EcoBoost engine, common misfire causes include ignition coil failure, spark plug issues (turbo engines are sensitive), carbon buildup on direct injection intake valves, fuel injector problems, and boost leaks affecting cylinder pressure.
Truck Usage Considerations
Rangers used for towing, hauling, or off-road experience higher loads that can accelerate ignition component wear. Check the vehicle's usage pattern when evaluating misfire causes.
Diagnostic Approach
The coil-on-plug design allows easy swap testing. Move cylinder 2's coil to another position and see if the misfire follows. This quickly identifies a bad coil without buying parts first.