-95 R129 SL500, rpm jumping up and down in park even in drive?

Hello member, My Benz idle up and down when car is in park and drive position what could be the problem. Haven't found any vacuum hose loose. In park engine idle between 200-700 rpm and almost stalling out . In need of some help . Thanks. Zipkart

Hello member,
My Benz idle up and down when car is in park and drive position what could be the problem. Haven't found any vacuum hose loose. In park engine idle between 200-700 rpm and almost stalling out . In need of some help . Thanks.
Zipkart

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