Coolent Temperature Sensor

[El Gato Liso]

so

i did a stomp test and it gave me 1 2 2 3 = coolent temp sensor (for the m50 E34).

what can this component failing cause? or what can come from this unit no longer working?

thank u

[SamE30e]

Coolant temp sensor to the ECU. This would cause the car to run rich, poor gas mileage, down on power and maybe a bad idle when hot.

There is 2 in your cylinder head, next to eachother. The one with the blue connector is the ECU one, the other is for the gauge on the dash.