1 Can Water Temperature Sensor be Bad?????? Fri Mar 16, 2018 11:43 pm
billhutchsat
active member
My 89 K100RS has been in a no start, poor enrich running condition. Upon cleaning up the water temperature sensor, the engine now is in a hard starting condition and the engine runs poorly in an enrich running position.
My question are these:
Can the water temperature sensor start going bad but still allow the engine to be started? Can a bad water temperature sensor cause a poor, enrich running, engine? When I disconnect the water temperature sensor harness while the engine is running the engine straiten up and runs like it should. I do not really understand the relationship of the temperature sensor to the Fuel Injection Control Module except that it passes a ground to Pin #10 on the Fuel Injection Control Module. Can I have a good water temperature sensor and a bad a Fuel Injection Control Module? The engine will not start if the sensor wiring harness is disconnected from sensor.
I attempted to ohm the sensor but did not understand the ohm results. I have a new sensor on order but I am wondering if I can have other problems causing my hard starting, poor, enrich running engine on my K100RS.
Any comments, suggestions, advice or recommendations are welcome and appreciated.
Bill Hutchens
San Antonio, Texas
03/16/2018
My question are these:
Can the water temperature sensor start going bad but still allow the engine to be started? Can a bad water temperature sensor cause a poor, enrich running, engine? When I disconnect the water temperature sensor harness while the engine is running the engine straiten up and runs like it should. I do not really understand the relationship of the temperature sensor to the Fuel Injection Control Module except that it passes a ground to Pin #10 on the Fuel Injection Control Module. Can I have a good water temperature sensor and a bad a Fuel Injection Control Module? The engine will not start if the sensor wiring harness is disconnected from sensor.
I attempted to ohm the sensor but did not understand the ohm results. I have a new sensor on order but I am wondering if I can have other problems causing my hard starting, poor, enrich running engine on my K100RS.
Any comments, suggestions, advice or recommendations are welcome and appreciated.
Bill Hutchens
San Antonio, Texas
03/16/2018