Acura TL knock sensor location inquiry on Acura TL

Some Acura TL owners report experiencing difficulties locating the knock sensor, which is typically situated in the engine block valley between both cylinder heads. Accessing the knock sensor often requires the removal of both the upper and lower intake manifolds, and some owners find that special tools are necessary for this process, particularly for the lower intake manifold. Additionally, a malfunctioning knock sensor can trigger the check engine light, with error codes such as P0325-P0334 indicating potential issues like intermittent problems, high input, low input, or open circuit conditions. Owners planning to replace or service the knock sensor should ensure proper connections and wiring between the sensor, connectors, and the PCM, and may need to disconnect the negative battery cable and drain the engine coolant prior to accessing the sensor.