Crankshaft Sensors

Crankshaft Position Sensors – The Critical Signal That Allows Your Engine to Start

The crankshaft position sensor is one of the most important sensors in a modern engine. It tells the engine control unit (ECU) that the engine is rotating and provides precise information about crankshaft speed and position. Without this signal, the ECU will not authorise fuel injection or ignition, and the engine will not start.

When a crankshaft sensor begins to fail, the symptoms are often confusing and intermittent. Vehicles may crank strongly but refuse to start, cut out suddenly while driving, or start normally when cold and fail once hot. These faults are frequently misdiagnosed as fuel, immobiliser or battery problems.

Why Choose Our Crankshaft Position Sensors

• Accurate Engine Speed & Position Data – Provides precise RPM and crank angle information required for injector and ignition timing.
• Prevents Crank-No-Start Conditions – Restores reliable startup by delivering a stable signal to the ECU.
• Application-Correct Fitment – Designed to match OE mounting depth, connector type and signal output.
• Heat-Resistant Construction – Built to withstand extreme engine bay temperatures common in South African driving.
• Workshop-Trusted Reliability – Chosen by technicians diagnosing complex no-start and cut-out faults.

If your vehicle cranks but will not start or cuts out without warning, a failing crankshaft position sensor should be one of the first components checked.