Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSLAND ROVER2009LR3 (LA) V8-4.4LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSCRANKSHAFT POSITION SENSORDESCRIPTION AND OPERATION
2009 Land Rover LR3 (LA) V8-4.4L
Crankshaft Position Sensor: Description and Operation
2009 Land Rover LR3 (LA) V8-4.4LSECTION Description and Operation
Crankshaft Position and Engine Speed Sensor
Description
The crankshaft sensor is checked for loss of signal during cranking and engine running conditions. When the appropriate entry conditions have been met a loss of sensor pulses for greater than the predefined time will register a fault. If the fault is registered on 2 drive cycles then the MIL will illuminate.
Additionally if the number of crankshaft sensor pulses is incorrect by more than one pulse in any one engine revolution then a fault event is recorded. If the number of fault events exceeds the limit without the engine synchronising then a crankshaft range performance fault is registered. If the fault is registered on 2 drive cycles then the MIL will illuminate.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.