my b18a has a sensor on the rear of the block close the oil filter, its green. my d16 had a sensor on the thermostat that is brown, wut are these sesnsors? should i conncet the one on the block with the one from the thremostat?

 

Brown plug is Coolant Temp Sensor.

 

i think those two are different. one is coolant, the brown, the other maybe oil pressure sensor or something. not sure on that though

 

hm, any idea's on wut i should do