how can i tell if the knock sensor is bad and are there more than one type or make of them? (like the distributor can be a Hitachi or Nippon Denso..Damn that one always gets me.)

how can i tell if the knock sensor is bad and are there more than one type or make of them? (like the distributor can be a Hitachi or Nippon Denso..Damn that one always gets me.)

 

hi, not sure how to test one but there were 2 different ones for the ea82 motors, 85-86 and 87 on, first is a 2 pin unit with a white plastic upper portion and the more recent is a 1 pin with green plastic upper portion, they just thread in the block. hard to find the early ones, but i think they used them on the jdm engines for more years.