Quality Replacement Original AC Delco Part Two Required Per Car Quality replacement for the knock sensors hidden under the intake of the LS1 engine. Due to many heat cycles, the end of the knock sensor the wiring plug attaches to can become brittle and allow the plug to fall to the side which will cause the check engine light to come on.
Vehicle Fitment:
The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.