Today my temp went to 110C = 230F is that high? this happen after I changed the temp gauge sender and now is causing fan problems. I tested my brother civic and is running no more than 90C = 194F

 

Provide more information. If you do not know what information to provide, do a little bit of searching. If you want a solid answer we need solid information.

230F is higher than most cooling systems run at, but is still "safe". We need more information to help you find a cause.

 

You may have an air pocket after doing that sender bleed the system and see if it helps.

 

Yes I replaced a new temp sensor (sending unit) that goes from cooling water to the temp gauge on dashboard. This new sensor caused fan problems only 1 fan was working so now Im going to reinstall the previous temp sensor (also new) That I know is not causing fan problems it delays the movement in the temp needle gauge but does not cause fan interferences. I connected both fans directly to power so they spin continuously without delays meanwhile I return the previous sending unit.




I replaced sending unit...

 

You replaced the wrong sensor.

The least you could do is provide your exact year make and model as has been already requested and is common sense when it comes to posting at an online message board requesting help on your car.

 

Honda accord wagon 1991 replaced the sender in auto zone brand new but sender cause fan problems so reinstalled a more delayed sender that doesnt cause fan issues

 

If you replaced the sending unit, then that wouldn't affect how the fans run.

First, always replace cooling system components with Honda parts. Aftermarket cooling parts, especially store parts, don't last very long and it's not worth risking an overheat just to save a few bucks.

You need to check if your fans are coming on as the car tries to overheat. It's possible at 235 degrees that your engine is already damaged from being overheated.

 

Is not overheating (if 230 F is safe) so far I reinstalled the sendit unit before 2 years ago and that fix the fans turning off and on improperly for strange as it seems. My only problem is this new sending unit send a daleyed reading in dashboard neddle temp but accurate.

 

You car shouldnt go above 200F.

 

at 230 both fans should be on and the temperature should drop back down to around 200 degrees.

 

Actually at 180 the thermostat starts to open, at 195 the fans come on and the thermostat is fully open. The car should sit around 195ish. When the car is off the radiator fan should come on around 215ish.