Ive searched but didnt find what i was looking for. Is the knock sensor from the 87-88 interchangeable with the 89-92 7mgte turbo? Got code 52, did the rewired for the knock sensor but the code is still there. Already tried a different ecu but code is still there. I got two knock sensors off an 88 turbo with the green plug but not sure if its the same thing as a 89-92 gray plug. Thanks in advance.