S5 Streetport N/A
 

Anybody have any thoughts on why my idle is high a local mechanic said it could be one of my sensors but what i find odd is that when im in neutral and step on the brakes my car slowly drops idle then it shuts off ummmm i need help asap also if i hold the clutch in and put in first the idle drops until it turns off. maybe wiring problems? or those sensors?