The 2022 Land Rover Defender displaying P0302 with noticeable vibration indicates a cylinder 2 misfire condition affecting the turbocharged Ingenium engine. This modern interpretation of the classic off-roader deserves thorough diagnosis to maintain its legendary reliability.
Cylinder 2 Location on Ingenium Engines
On the Defender's inline-four or inline-six Ingenium powerplants, cylinder 2 sits second from the front. This position places it in the thermal center of the engine block, typically offering favorable operating conditions. When cylinder 2 develops issues, the cause often relates to component failure rather than thermal stress.
Vibration Characteristics
A single-cylinder misfire produces a rhythmic vibration with a frequency matching the misfire interval. On a four-cylinder engine, cylinder 2 fires once every two crankshaft revolutions, creating a distinctive pulse. The vibration typically feels more pronounced at idle and may diminish under load as increased engine speed masks the irregularity.
Primary Diagnostic Focus
Begin with ignition system inspection. The Defender's coil-on-plug ignition system places individual coils atop each spark plug. Swap the cylinder 2 coil with an adjacent cylinder—if the misfire moves, you've identified the failed coil. Spark plug inspection reveals combustion chamber conditions through electrode appearance.
Fuel Injector Evaluation
Direct injection fuel injectors operate at extreme pressures and can develop spray pattern issues or complete failure. Using JLR diagnostic software, perform an injector balance test comparing cylinder 2's response to others. Erratic readings indicate injector malfunction.
Compression Testing
If ignition and fuel systems check out, mechanical integrity becomes suspect. Compression testing compares cylinder 2's pressure to specifications and other cylinders. Low compression suggests valve sealing issues, ring wear, or head gasket concerns.
Unique Defender Considerations
Defenders often see more demanding use than typical luxury SUVs, including water crossings, dusty trails, and heavy loads. Air filter condition significantly affects engine operation—inspect and replace if contaminated. Water intrusion through air intake during deep fording can hydrolock cylinders, causing bent connecting rods.
Repair Costs
Ignition coil replacement costs $200-350 at Land Rover dealers. Spark plug service runs $250-400 for the full set. Fuel injector replacement for a single cylinder ranges $500-800. Mechanical repairs involving valve or piston work exceed $2,000 typically.