i posted this in the tech section but maybe some one here will know. i have jdm b16 with a pr3 ecu. i am getting a code 23 or knock sensor. i located my knock sensor and it doesnt look like its hooked up, but i dont see anything to hook them to


a. what do these plug into they dont look like they would fit either the oil temp sens. or the KS..

b. and these

 

What year B16 and do you have an OBD1 PR3 ecu?

The knock sensor is near the cylinder head. So it's the top one and a 1 wire sensor.

As for the 2 plugs you are holding. one is for TPS (behind the throttle body) and the other is the MAP sensor (on top of the throttle body). these often get mixed up.

The MAP wire sensor has a white, gr/blue (or grn/wht), and yel/grn (or yel/red) wires.

and the TPS wire plug has a grn/wht, red/blue, and yel/wht wire.

HTH.

 

exaclty what he said

 

my tps and map already have plugs hooked to them. why do i have 2 of each?
also my knock sensor is broken and its not hooked up. what will this cause my engine to do? its jdm 90 b16a with obd1 pr3

 

well depending on what car this is, my friends 93 dx hatch has 2 plugs leftover hanging down liek that form his b16 swap and they the 2 plugs l;ook just like the map and tps plugs. his car runs fine with no codes, he said something about plugs leftoever from his old harness or something but they are their nonetheless just liek yours.

 

what about pic b with the green and grey plug? what are those for?

 

The green plug is the engine temp sensor which is that style on the OBD0 motors. The sensor was relocated to the thermostat on 92+ motors as a normal 2 prong sensor.