Where is the engine speed sensor located on the new Passat?
2 Answers
The engine speed sensor on the new Passat is located at the connection point between the engine flywheel and the transmission. Function of the speed sensor: The engine speed sensor detects the engine speed, determines the position of the crankshaft, and detects signals for the top dead center of the piston and the crankshaft angle. These detected signals are then transmitted to the ECU to control ignition timing and fuel injection timing. Working principle: The engine speed sensor and the camshaft position sensor have similar structures and working principles. They work in coordination to ensure the engine operates properly. They are usually installed together, typically within the distributor, on the clutch housing of the transmission, or at the front or rear end of the crankshaft. A pulse signal-type speed sensor is used to measure the engine speed.
Regarding the location of the engine speed sensor on the new Passat, as someone who has been repairing cars for years, that component is typically installed near the front crankshaft or the flywheel housing. For common engine types in the new Passat, such as the gasoline EA888 series, the sensor is located on the right front side of the crankshaft case, aiming to monitor crankshaft speed data and transmit it to the computer for controlling ignition and fuel injection. If the position is slightly off, the car may experience difficulty starting, unstable RPM readings on the dashboard, or even stalling. Personally, I recommend checking the specific model's manual to confirm the exact location, as it may vary slightly between different engines. Generally, it's situated near the lower part of the engine, close to the transmission connection. It's best not to attempt DIY repairs—seeking professional diagnosis and replacement at a specialized shop is safer and quicker, avoiding potential mishandling.
