02 Silverado 5.3L Knock Sensor (P0332)
 

Hello-

Today I purchased a used 2002 Silverado 1500 Z71, 5.3L V8, 92000 miles - from a Chevy dealer. Drove the truck for maybe 2 hours and "Service Engine Soon" light comes on. Checked codes w/ scanner and found only 1 - P0332 Knock Sensor Low Input Bank 2. Any ideas as to what may have caused this? Could it be related to any engine washing they may have done to prepare for resale? Hoping the dealer will make this right. Thanks for any coments