P0301 on Land Rover
Cylinder 1 Misfire Detected
P0301 on Land Rover vehicles indicates cylinder 1 misfire detected. Au7o has documented this code across 1 Land Rover model — most commonly on Freelander. P0301 means the engine computer detected a misfire specifically in cylinder 1 — the spark didn't ignite the fuel properly, or the fuel/air mix didn't burn as it should. The computer detects this by sensing tiny variations in crankshaft speed each time a cylinder fires. A misfire wastes fuel, raises emissions, and can damage the catalytic converter if it's severe or persistent (a flashing check engine light usually warns of active, converter-damaging misfires). Because the code points to one specific cylinder, the cause is usually an ignition, fuel, or compression problem isolated to that cylinder. Typical repair costs on Land Rover range from $1,500 to $3,500, depending on the specific model and root cause.
Common Causes of P0301
- •Worn or fouled spark plug in cylinder 1
- •Failed ignition coil or coil pack for cylinder 1
- •Faulty or clogged fuel injector for cylinder 1
- •Vacuum or intake air leak affecting that cylinder
- •Bad spark plug wire (on applicable engines)
- •Low compression (worn rings, leaking or burnt valve, head gasket)
- •Carbon buildup on intake valves
- •Wiring or connector fault to the coil or injector
P0301 on Land Rover by Model
Land Rover Freelander(1 issue)
- Head Gasket Failure on 2.5L KV6 Engine2002-2005
The Rover KV6 2.5L V6 engine used in the Freelander is notorious for head gasket failure. The V6 design uses two head gaskets (front and rear banks) and the rear bank is particularly prone to failure. The aluminum heads warp from overheating, and the original gaskets deteriorate. Head gasket failure causes coolant and oil mixing, overheating, and eventual engine destruction if not addressed. This is the single most well-known Freelander issue.
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What does P0301 mean on Land Rover?▼
P0301 stands for "Cylinder 1 Misfire Detected." P0301 means the engine computer detected a misfire specifically in cylinder 1 — the spark didn't ignite the fuel properly, or the fuel/air mix didn't burn as it should. The computer detects this by sensing tiny variations in crankshaft speed each time a cylinder fires. A misfire wastes fuel, raises emissions, and can damage the catalytic converter if it's severe or persistent (a flashing check engine light usually warns of active, converter-damaging misfires). Because the code points to one specific cylinder, the cause is usually an ignition, fuel, or compression problem isolated to that cylinder. On Land Rover specifically, this code is documented across 1 model.
What causes P0301 on Land Rover vehicles?▼
Common causes on Land Rover: Worn or fouled spark plug in cylinder 1, Failed ignition coil or coil pack for cylinder 1, Faulty or clogged fuel injector for cylinder 1, Vacuum or intake air leak affecting that cylinder, Bad spark plug wire (on applicable engines). Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0301 on a Land Rover?▼
Repair costs on Land Rover range from $1,500 to $3,500, depending on the specific model and root cause.
Which Land Rover models have P0301 documented?▼
Au7o has documented P0301 on 1 Land Rover model: Freelander.