Weird idle with HO mani - Performance Forum

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Weird idle with HO mani
Thursday, April 20, 2006 6:28 AM
After having the HO manifold on my car for a week with no problems I'm getting some weird idle problems. When I first start the car it idles at about 900rpm and it stays just about there when I am driving and come to a stop. However, when I put the car into park after driving for a while I noticed that the rpms shoot up to 1200. I also notice that when I am at a stop it will fluctuate a little from 800 to 1000rpm. Not sure what the problem is but I know that is too high for an automatic. It find this strange because just last week the car was running fine with a steady 600rpm idle when warm. Any thoughts?



"Kneel before ZOD!!!"

Re: Weird idle with HO mani
Thursday, April 20, 2006 9:45 AM
me and kandyman are having the same problems, there is another thread discussing it. Keep an eye on the thread and see if someone comes up with an answer.




Re: Weird idle with HO mani
Thursday, April 20, 2006 11:03 AM
Maybe a vacuum tube came loose.
Re: Weird idle with HO mani
Thursday, April 20, 2006 11:31 AM
I think I found a fix, well at least temporarily but I haven't seen the problem come back yet. You have to reset the IAC by turning the car on and then off and then on and so on a few times for it to reset. Back to 600-700rpm idle again.



"Kneel before ZOD!!!"
Re: Weird idle with HO mani
Thursday, April 20, 2006 11:46 AM
is there an actual proper way to reset it or you just turn it on and off, on and off?



Re: Weird idle with HO mani
Thursday, April 20, 2006 1:09 PM
I know someone on here posted how to do it but I can't find the thread. Just turned on and off three times and that seemed to work. Haven't driven the car much since then though so not sure if its a full proof fix.



"Kneel before ZOD!!!"
Re: Weird idle with HO mani
Thursday, April 20, 2006 7:55 PM
you have to turn the swith to the on position like 6 or so times.

When the car idles high like that, try bliping the throttle really quick, and see if it comes down.



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Re: Weird idle with HO mani
Friday, April 21, 2006 12:45 AM
Turn key on (dont start the car thought) 30 sec
off 30 sec
on 30 sec
off 30 sec
on 30 then full ignition.

That's how I did mine.
-M


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