ICV mechanical Failure check engine light

[Oldmactech]

Got a CEL and engine failure pop up light (not quite limp mode) for Idle Control Valve mechanical failure.

Pulled the ICV and it rattles just fine, sparayed carb cleaner and reinstalled. Did notice that the rubber connecting port has a bit of a split lip.

Drive it 50-60 miles, code came back.

Question: if the valve rattles freely shouldn’t it function? Does it pull a vaccum and the split hose be the culprit? Anything else?

Thanks.


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