Honda 30530-RSH-004 Sensor, Knock

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It is mounted at the front side of the engine block, beneath the intake manifold for 2007 and 2008 models and beneath the intake manifold runners for cylinder number 2 and 3 for the 2009 and later models. On 2007 and 2008 models, the current knock sensor is located at the intake manifold and this requires its removal first. For models 2007 and 2008, the electrical connector is located at the rear of the sensor and can be disconnected via the release tab, whereas the sensors of 2009 and later models are more accessible. Loosen the screws holding the sensor to the engine block and for the job, tighten the screws in the reverse order, then tighten the sensor to the recommended value.