1992 super high idle?

by Dean Dassel
(Byron, Ga.)

My 1992 LT1 convertable will only idle at 1800rpm.this was after I had the ecm, rebuilt.
I sent it twice, to make sure,nothing was missed. I am pulling a CCM code of 41, and can't pull up any ecm codes just an "error ", when I try.
I have the FSM, and everything seems to checkout fine..I'm really baffled, as this now is in the 3rd month, of a usually flawless car. This is my first vette, and I'm really getting frustrated.any help??

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