My 325i will sometimes surge between 600-700 rpm at idle, cold or hot, and other times stay steady at 700 rpm. With a/c on same issue, though now 700-800 rpm.
ICV was removed and cleaned (though not dirty). No obvious vacuum leaks though all rubber is original. Fuel pump is also original.
Thoughts
ICV was removed and cleaned (though not dirty). No obvious vacuum leaks though all rubber is original. Fuel pump is also original.
Thoughts
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