1998 GSR b18c1 motor

its located on the back of the block, just above the oil filter and goes inside the block. It has a green connector off the engine harness, its a red/blue wire and only 1 wire.

i tried looking it up on a online service manual, but the best i could find was that it is a c133......

it was just like 1 wire dangling off the sensor, so im wondering if i can just resoder the wire to the sencer thats still inside/connected to the block. and what senser it is exactly

EDIT.....i think its the knock sensor, sence it is only like 1 pin coming off the plug connecting to the sensor, will it be ok to just soder if back on? my car is boosted <turbo> so its a kinda important sensor