I am getting a low input check engine light for both my knock sensors, The sensors are brand new so im not sure what the problem is, how ever one thing that comes too mind is... If the knock sensors had there wires switched, Front on the rear and the rear on the front... Could it possibly case this?

Knock codes can be from a number of issues

Bad new sensors
Water trapped in the recesses
Damaged mini-harness
Wrong sensors
Actual engine knock
etc

Getting them backwards would only reverse the code designation, IE bank 1 to bank 2, if it did anything at all. Besides, the length of the knock sensor mini-harness makes it difficult to reverse the two

its possible i pinned them wrong at the ECU, I didnt think if it actually picked up knock it would throw a low input code.

Even so, it shouldnt make any difference