Hello all,

I am having a hesitation problem with my 1990 300SL (CIS fuel injection). Here are the details.. what should I look at next???

Problem:
-Hesitation when accelerating from idle.
-No problems with starting engine, idling, or once car has started moving. Accelerating from 5mph-60mph is perfectly fine!
-Anything other than light pedal pressure causes it to bog down for a second before it accelerates. Hard acceleration causes it to stall!

Conditions:
-Happens consistently all the time (cold weather, just after starting, when fully warmed up, etc, etc.)

Thanks

Tom