CCIYU knock sensor Fit for 30530-PNA-003 2005 for Honda for Accord 3.0L,2002-2005 for Honda Civic 2.0L,2002-2009 for Honda CR-V 2.4L,2003-2011 for Honda Element 2.4L

A vehicle knock sensor is a sensor screwed into the engine's block or cylinder head. It is used to detect engine knock or detonation (there is a piezoelectric element inside the sensor). The signal from the knock sensor is sent to the PCM/ECM and that is used to control the engine's timing. Typically you'll have one knock sensor on each bank of the engine (one on inline 4/5/6 cylinder engines, two on V6, V8, V10 engines).Like anything else, sensors wear out, corrode, or become dirty.

Item fitment:
2007-2012 for Acura RDX 2.3L
2002-2006 for Acura RSX 2.0L
2004-2008 for Acura TSX 2.4L
2003-2007 for Honda for Accord 2.4L
2005 for Honda for Accord 3.0L
2002-2005 for Honda Civic 2.0L
2002-2009 for Honda CR-V 2.4L
2003-2011 for Honda Element 2.4L