The Hella 6PU 009 168-401 is a Hall-effect camshaft position sensor designed for selected Volkswagen and Audi engines. It is one of the most important engine management sensors on a modern VAG engine, providing the ECU with precise real-time data about camshaft position and rotational speed. Available at Dub Source JA, Kingston’s dedicated VW and Audi parts specialist in Jamaica. WHAT IT IS A Hall-effect sensor detects changes in a magnetic field rather than using physical contact between moving parts. The camshaft position sensor is mounted close to the camshaft and reads a toothed reluctor ring as the camshaft rotates, generating a precise signal that tells the ECU exactly where the camshaft is in its rotation at any given moment. This level of precision is what separates a Hall-effect sensor from an older variable reluctance type, and it is why modern engine management systems rely on it for accurate timing control across all operating conditions. WHAT IT CONTROLS The ECU uses the camshaft position signal as a reference point for several critical engine management functions simultaneously. Fuel injection timing depends on the ECU knowing exactly when each cylinder is on its intake stroke so fuel is delivered at the right moment. Ignition timing relies on the same reference to fire the spark plug at the correct point in the combustion cycle. On engines fitted with variable valve timing systems such as Audi Valvelift or VW VarioCam, the camshaft position sensor is also the primary feedback signal that tells the ECU whether the variable timing adjustment it has commanded has actually taken place. WHY IT MATTERS When this sensor fails or begins to send an inaccurate signal, the ECU loses its timing reference and the effects are immediate. Common symptoms include a hard start or a no-start condition, rough idling, misfires, hesitation under acceleration, reduced power output, poor fuel economy, and a check engine warning. On turbocharged VAG engines where injection and ignition timing tolerances are tighter than on older naturally aspirated units, a failing camshaft position sensor tends to produce more pronounced and more immediate symptoms. COMPATIBILITY The Hella 6PU 009 168-401 fits selected Volkswagen and Audi models. Camshaft position sensor fitment is specific to engine code, camshaft configuration, and model year. Use our VIN Part Matching service to confirm this is the correct sensor for your engine before ordering, or browse our full Electrical parts range for related engine management sensors and components. AVAILABILITY In stock at 70A Mannings Hill Road, Kingston. We deliver island-wide across Jamaica. Call 876-740-9332 or order at dubsourceja.com. Hella Camshaft Position Sensor 6PU 009 168-401 available at your Volkswagen and Audi parts specialist in Kingston, Jamaica.