The best way to test is to place a paint mark on the front pulley and hook up a timing light, watch the mark and gently tap the block with a small hammer, the mark should alter as the knock sensor picks up the vibration, but if you have a knock sensor code, just fit a new one, it will be faulty.
Mark (mhpautos)
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Saturday, February 19th, 2011 AT 11:50 PM