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Car idles at 1500 rpms when fully warmed!!

Old 11-16-2018, 07:09 PM
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Default Car idles at 1500 rpms when fully warmed!!

Just bought a s2k but notice it’s idling higher than usual. It sits at 1500 rpms. Any causes or problems I should look after.
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Old 11-16-2018, 09:45 PM
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Try the idle relearn procedure.

Pull "backup" fuse under dash for ~10 minutes. Put back in, start the car with all accessories powered off. Let engine warm up to temperature and let the radiator fan cycle 2-3 times.
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Old 11-17-2018, 04:33 AM
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I’ve done it a couple of times already and doesn’t seem to help, maybe I’ll try cleaning out the iacv today and see what happens.
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Old 11-17-2018, 05:59 AM
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Proper amount of slack in the throttle cable?

-- Chuck
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Old 11-18-2018, 11:24 AM
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Throttle cable is good. No cel light whatsoever. So when I drive and come to a complete stop the rpms slowly but stay around 1300 rpms. I did try cleaning the iacv with some brake cleaner but nothing has changed.
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Old 11-18-2018, 01:18 PM
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Cleaned TB plate?
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Old 11-29-2018, 08:16 AM
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Originally Posted by 04s2000ATX View Post
Throttle cable is good. No cel light whatsoever. So when I drive and come to a complete stop the rpms slowly but stay around 1300 rpms. I did try cleaning the iacv with some brake cleaner but nothing has changed.
Were you able to fix this? If not, have you checked the voltage from the throttle position sensor? If the previous owner replaced it with an aftermarket TPS, it may not be adjusted correctly. IIRC it should be 0.5V at idle and 4.5V at WOT.
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Old 11-29-2018, 10:26 AM
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vacuum leak somewhere
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Old 11-29-2018, 01:32 PM
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Originally Posted by s2000ellier View Post
vacuum leak somewhere
I agree.
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Old 11-30-2018, 12:00 PM
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I’ve searched for leaks and haven’t found anything. I’m not sure how good skunk2 throttle body are, maybe that’s causing the revving. I’m clueless
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