I got the code 48 on my on board diagnostics and the Land Rover runs pretty cruddy. I've looked up the code and it has to deal with the throttle body and idle screw. I've been working on it for the last day and it seems to work then not work. I got it running good and the code cleared. Drove it for 1/2 a day and code came back and runs bad again? Any help and insight is GREATLY appreciated..