Cooling fans and idle issues

93 integra gs, cooling fans don’t work and the idle surges bad. Replaced throttle position sensor, engine coolant sensor, radiator fan switch, and thermostat. I’ve checked all fuse’s and relay’s and they are good. Checked everything with a multimeter and the only thing I found is that the ground on the engine coolant sensor connector had .45 of resistance. If you jump the radiator switch connector the fans turn on. Another thing is if you unplug the connector on the engine coolant sensor with it running the idle is perfect. I don’t know what to do next so any help would be great.