take off the air cleaner with a 10mm wrench and inspect the throttle linkage, I would expect that you will find a broken or missing spring or detached linkage

__________________
Jerry

2004 SL500 Black 55K Miles
2002 s500 Black 90K Miles
1986 300E Gold 233K Miles
1966 Twin Cessna 320D
1989 Jeep Cherokee 233K Miles
1994 Ford Van E150 399K Miles