My idle went up 100rpm

MA drigal

New Member
Mar 26, 2008
20
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SGV, CA
So last night I drove a good 25 miles from my house... loving the cool nightly breeze, I wanted to see how fast I can go... 10 miles away from my house I was topping out at 142 mph for about 3 to 4 miles. After exiting I notice that my idle is 1100rpms when b4 all that it was around 950 to 1000 rpms. Before when I would slow down my rpms would drop quick now it would hover down slowly and stay at 1100rpms.

Anyone know what may be causing this minor issue?