What do you mean "pulled back and forth"? When it is idling good what happens when you give it gas? Does it rev up ok? Or doe your problem occur when you try to rev it up? From what i read your problem occurs occasionally. Is his correct? Are there times you can drive it around the block with no problems?

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65 190d sold
85 380SE sold
87 560 SL 180K
84 380SE 96K (mint)