Hey, thanks for good responses.
When starting the car when cold, it will start, but not run on its own, have to give a little gas. The engines heats up slowly, but when it hits 40c it has a steady idle at 1100rpm, the car is not hard to stop.
When I measured the connectors, I only measured volts, none of the sensor close to the termostat, or on the housing, had any voltage to them, and the IVC had 3v(I meant IVC in the previous post) , so pretty low. I want to inspect the wires, but having a hard time finding out where they go, I highly suspect a wiring issue. But will try giving it 12 volts and see what happens