i have a gsr in my car with the gsr ecu but no knock sensor and i keep getting a check engine light for knock sensor....... does anyone kno what cars or motors i can get a knock sensor off

 

GSR, B16s, some of the vtec civics, and some of the older preludes. Basically if its the plug is round, you are good. The newer preludes and B20s use a brown square pin. I think you can use both the green and black round pin knocks, but the stock gsr is black....the older B16s are green.