You have the later throttle body with stepper motor idle control instead of the separate idle control valve and if anyone mentions OBD2, it isn’t. Remove and thoroughly (but gently) clean the internals of the throttle body (paying particular attention to the spindle locations) with a soft brush and aerosol carb cleaner. After it has been re-fitted, turn the ignition on and go into engine 01, basic adjustment mode 04, group 098 and wait whilst the throttle body adapts to the ECU and wait for at least 15 seconds and then turn off the ignition and wait for another 15 seconds. When you restart t