Position Sensor

Reliable Position Sensor

Modern heavy equipment relies on a network of sensors to help the ECU/ECM monitor operating conditions and control fuel, timing, hydraulics, and safety functions—and a position sensor tells the controller exactly where a component is (throttle/pedal, gear selector, cam/crank, linkage), so the machine responds smoothly and correctly.

What Is a Position Sensor Used For?

Position sensors are used anywhere the system must “know the position” to operate properly, such as:

• Throttle/Accelerator Position (TPS / APS): measures throttle plate or pedal demand for accurate fueling and response.
• Gear Position Sensor: confirms selected gear/range for safe shifting and drivability.
• Camshaft / Crankshaft Position Sensors: provide engine speed/position signals for starting, timing, and stable running.

Common Symptoms of a Bad Position Sensor

• Hard starting / no start (often crank/cam sensors)
• Poor throttle response, limp mode, surging (TPS/APS)
• Fault codes related to “position signal” / “range” / “circuit high/low.”
• Unexpected shifting behavior or gear indicator issues (gear position sensor)

Position Sensor Quick Buy Table

Tip: If you’re deciding between two listings, choose the one that matches your exact part number and your equipment/engine model in the title.

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