0AW331291B Volkswagen SENS.ROTOR

This sensor basically keeps track of where the crankshaft is in the engine's rotation. It does this by watching a toothed wheel, or a similar marking, attached to the crankshaft and sending a signal to the engine computer. It tells the computer exactly which position the crankshaft is in at any given moment. It measures both speed and position. It's absolutely critical for a lot of things. The engine computer uses that information to figure out when to fire the spark plugs and when to inject fuel. It's a key part of the whole combustion process. It also works with other systems, like the anti – theft system, and can even affect how the transmission shifts in some vehicles. Think of it as the engine’s timing master. Without an accurate signal, everything gets thrown off. If this sensor goes bad, you’ll notice if it’s a serious failure pretty quickly. Usually it'll cause the engine to stall, or it might not even start at all. Sometimes it’ll cause a really rough idle, or a loss of power. More modern cars can have a lot of different failure modes, so you could get warning lights on the dash, and maybe even a temporary loss of power. It acts like a shield against engine timing problems; when it fails, you're leaving the engine vulnerable. We carry a lot of these at Fixparts Online, and getting a good quality replacement is essential to keep everything running smoothly. It’s a relatively inexpensive part compared to the damage a bad one could cause, so it’s always good to address it quickly. Backed by trust: Crankshaft Position Sensor (MPN 0AW331291B) comes with a 12-month warranty!

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