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KRatcliff · 07-01-2021, 10:10 PM

It sounds like you are using the IAC. Disconnect that sumbish. You don't need it and should solve your problem to allow the throttle body to simply close to your set idle point.

07-01-2021, 10:10 PM	#7
KRatcliff Senior Member Join Date: Sep 2011 Posts: 769 Likes: 75 Liked 534 Times in 143 Posts	Re: Xfi 2.0 question on lt1 It sounds like you are using the IAC. Disconnect that sumbish. You don't need it and should solve your problem to allow the throttle body to simply close to your set idle point.