SurfLifeAway

Okay, its snowing but i need to find out the size of the tool that I need to get the Coolant Temp Sensor off my OBD2 JDM GSR motor. I've tried a 20mm open end wrench and it's still not working, but 20 is the biggest I have got. Does anyone know the exact size so I can go buy it.. thanks!

z6hatchboy

are you sure you have the right one, i thought the coolant temp sensor was below the dizzy (at least on a d series) and i never thought those were bigger than even a 14mm

SurfLifeAway

I'm pretty sure I do.. it goes in right by the thermostat with a single wire clip that plugs into a brass looking nut kinda thing.

SurfLifeAway

Here is what it looks like

z6hatchboy

that does look like it, i dont knwo then, i never thought they was that big. Do you have a cresent wrench or something adjustable? Also, search that part somewhere, some places will have the bolt size and thread pitch for sensors

SurfLifeAway

The one in the picture I attached the thread size is. . Thread Size: 12 x 1.50mm and it says it's for the B18c. I do have a cresent wrench but it doesn't work that well..but I will def give it a try. Thanks again though!

SurfLifeAway

Actually I am confused now. Where is my COOLANT TEMP SENSOR located on the JDM B18C GSR motor? Is it the one by my thermostat or is it in the side of the block? I don't want to have to take the wrong one off if I don't need to.. Please help! Thanks

My CEL light is on and its calling for the Coolant Temp Sensor so i'm going to take whatever i need off my old B16.

lee0149

the one right by the thermostat is the one.

randomtask77

The one by the thermostat is the thermoswitch (pictured below).


The sensor under the distributor is the coolant temp sensor.

SurfLifeAway

Ohhhh i see.. ****! cause i just changed the one by the thermostat and it's still throwing the same code.. damnit. lol alright well let me try that and then i'll let ya guys knows.

SurfLifeAway

Does the blue and grey clip go into that or the red white and green? I am using the B16 wiring harness so ONE has to hang somewhere but currently I have the red white and green one plugged into the coolant temp sensor

SurfLifeAway

Ok replaced BOTH sensors. The one by the thermostat and the one on the side of the block and still NO VTEC and CEL is still on