when coming to junction and i have to stop my idle drops to the point where it has cut out a few times the car is running perfect i 1st have diagnostic test and it came up oxygen sensor needs replacing so i did that put it back on test and then the air mass came up so i sent that to bba reaman for rebuild wen that came back i put that on and did the test and now no faults but SAME problem still havin low idle wen coming to stop

what do i do next?

 

Hi, have had this fault many times, try cleaning the throttle housing. The butterfly may have a build up of carbon on or around it.