Intake Air Temperature Sensor

#1
Hi,
My car is 1999 model 1300 cc Toyota Corolla Terra.
I had transformed my car into LPG, yesterday. There was a single-point injection LPG kit, I changed to sequential LPG kit of Prins.

Now, I have a problem about idle speed. When engine is idling rpm is dropping between 1000 rpm and 750 rpm. It's continuously changing from 1000 to 750. Diagnosis software indicated "Intake Air Temperature Sensor" (Its picture is in the below). I can't believe this little plastic piece may cause this problem. Before changing LPG kit this problem was very minor. Even, I wasn't feel at many times.

May this sensor cause this problem ?. Or do you have another thinks about this problem ?.
IMG_0728.jpeg
 
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