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Thread: Weird idle behavior

  1. mrothwell
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    Weird idle behavior

    09-28-2012 08:44 AM #1
    A few days ago, I was coming up to a stop sign and pulled in the clutch to coast to a stop. The rev's dropped to about 3k and stayed there before dropping down to idle. I wasn't sure if I had accidently left my hand on the throttle, so yesterday I found the biggest hill I could. I hit the hill at about 50 mph, pulled in the clutch, and deliberately rolled off the throttle so I could coast to the bottom. Sure enough, my engine idled at about 3k RPM for a few seconds before dropping down to idle. I tried it a few times just to make sure I wasn't nuts, and it did it every single time.

    WTF is going on?
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  3. Knock Sensor
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    09-28-2012 09:11 AM #2
    Fuel injected rev hang?

    Doesn't sound normal to me.
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  4. matoo
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    09-28-2012 06:01 PM #3
    Check to make sure your throttle cables aren't binding in any way and are properly adjusted. Then check the throttle position sensor as a start.
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  5. turbinepowered
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    09-28-2012 10:34 PM #4
    Quote Originally Posted by matoo View Post
    Check to make sure your throttle cables aren't binding in any way and are properly adjusted. Then check the throttle position sensor as a start.
    Both of these.
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  6. mrothwell
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    10-12-2012 01:09 PM #5
    It turns out that the issue was my idle, somehow it had crept up to 1700 RPM. Once I adjusted it down to 1300, the rev hang went away. Weird right?
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