how to fix a p0327 code?

Question

i have a 03 silverado with a 6.0L i notice a good bit of power loss and mpg loss. ive changed the pigtail to the knock sensors, both knock sensors and torqued to 15 ft pounds and checked for any wire damage and there is none. getting very irritating

Answer 1

P0327 Knock sensor 1 signal low input

P0327 is for the front knock sensor, low input or signal is not present. You would need to rule out any open or short to ground with the knock sensor harness connection ,with a ohm meter, measure the ohm , with the harness disconnected you should measure 93-107 ohms.