Might be a dumb Q to most...however it came up on my trouble codes as detonation knock sensor.....

However I do not know where that is located !!!!

Plz Help !!! I have a 90 240 sx orig. motor.

Thanks ! Scot

 

not sure exactly where it is on the sohc, but on my 95 dohc the knock sensor is between the intake manifold and the block, between runners 2 and 3 i believe. its a big pita to change, but we managed to do it with a coat hanger and some electrical tape.