Coolant temp sensor resistance close enough?

[LonelyDrifter]

I've been seeing some of exhaust smoke (white) with my 90 240sx. Was told to check the coolant temp sensor. Today my ECU was throwing codes for the air temperature sensor and the coolant temperature sensor.

So my coolant temp resistance was only about 2020 Ohms at ~70 degrees (its supposed to be within 2100-2900 at 68 degrees). Is this close enough, or does it need replaced?

Also, would a radiator leak at the upper radiator hose and the radiator cause a coolant temperature ECU code? Or would it have to be the sensor or related wiring?

Thanks guys

UPDATE: Scratch that, the resistance on the coolant temp was within range after a few more minutes of equilization. I also replaced the PCV valve (it was all gunked up when I took it off). Still have the smoke...


Modified by LonelyDrifter at 4:44 PM 3/28/2006