Tps on S4r needs replacing!!
 

The throttle position sensor is being replaced on my S4r as it still runs wierd low down and there diagnostics still says no fault with it but its being replaced so hopefully no more on/off throttle moments and i still think its not as powerful as it should be so hope fully this sort it out:D:D

Glad its under warranty as if the sensors come off alone they are 400, but if they part of throttle bodies then it be around 1k eeekkk:o:o