i am getting conflicking answer so i post a new one. i have these 3 sensor on the back of my b18a block. here is a couple of pic of it.


i think # 2 is low oil pressure. but i am not sure what the others are. Any help is greatly appreciated. Thanks in advance

 

#2 is low oil pressure
#1 is engine coolant temp
#3 ????

Am i right?

 

yeah you are right but I have no idea what that third one is either

 

check your another post, your questions are anwsered

 

#3 is block thermosensor. it activates ur radiator fans

 

if i am understanding you guys correctly....the dx themosenor plug is orginally on the themostate, on the b18a motor...it is on the block. How would i rewire it? the wire color are different. Thanks for all of you that reply.

 

it does not matter what wire goes in what position on the ECT. All the ECT sensor does is gives the fan ground at a certain degree. that it.