SOURCE: 2002 chevy silverado hd2500 6.0 ecm code po332 low
If all connections are good "dry, tight, no corrosion" then yes. It should be a defective sensor. These sensors are piezo sensors and create a voltage when sensing a knock. A bank refers to a side on a V style engine, 2 refers to the rear sensor on your bank 2. Bank 1 should be the side with cylinder #1 which should be the cylinder closest to you on one of the sides. So your looking for the rear sensor on the opposite side.
SOURCE: what side of the engine
You know where the intake manifold is on some silverado you may have to remove the intake manifold, It is threaded into the block under the intake manifold , some production months the bolt goes right in the coolant passage, when you install it the torque is 14-15 FT-LBS. some production monthes its above the starter and samand some below exhaust manifold, same toque setting, before you take it out to service the knock sensor, do you have a hitch, ? If you do a hitch bouncing around can set off a knock sensor code.
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SOURCE: I HAD PO332 AND P1516 CODES ON MY 2003 SILVERADO
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PO332 means there is a problem in the Knock Sensor 2 Circuit Low Input (Bank 2). This part might need to be replaced.
P1516 Throttle Actuator Control(TAC) Module Throttle Actuator Position Performance. Look for a yellow wire inside the throttle body connector. This wire usually breaks inside. To test, grab the wire for about 5 inches then tug if it breaks then that is the problem.
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