bristolninja

I have this code which I know is something to do with the throttle body magnetic motor so I cleaned the throttle body and cleared the ECU which it stayed off for 3 days temp outside hit 30 degrees , EML come back so I reset ECU same thing went out after 2-4 days came back on but only on start up … what can I do next before I take it to a garage which will cost a fortune?

Where would I start ti look and what am I looking for , do I need to take the air intake box off

I have this fault code P1126 manufacture control is says on my scanner but when I read up what it is is to do with the throttle body , so I reset the ECU and the car ran fine for 4 days then came back on so cleaned the body with carb spray , what else could it be ? as it goes out when reset ecu and comes back after a couple of days