Keep in mind I'm 100% unqualified to say this, but I would look at:

1 - cat
2 - wires that lead to spark plugs
3 - gas cap

If you accelerate when it's trying to stall, does it throw the CE light, and, if so, what codes?

__________________
Michael

1988 300 SL (5 Speed)
1994 E320 Wagon
1997 C230