HQRP Knock Sensor. A vehicle knock sensor is a sensor screwed into the engines block or cylinder head. It allows the engine to run with the ignition timing advanced as far as possible. The automobiles computer continues to advance the vehicles timing until the knock sensor detects knock or detonation. After that the sensor sends the computer a signal to adjust the timing. This ensures greater FUEL ECONOMY and MORE POWER to get the most from your engine! Compatibility: 1992 Honda Prelude 1993 Honda Prelude 1994 Honda Prelude 1995 Honda Prelude 1996 Honda Prelude Features: HQRP Knock Sensor plus HQRP Coaster; Condition: New; Standard: # KS-H65 / KS-65 / KS65; AC Delco: # 213-2308; Compatible with Honda/Acura OEM Ref.
