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High idle when Hot

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    #1

    High idle when Hot

    I swapped over an h23 IM. I finally got every adjusted properly so when the car starts it idles at 12-1500rpm and warm 7-900rpm.

    The other day I was stuck in some bumper to bumper traffic, it was probably 70 degrees out and I'd ride the clutch a little to move forward then depress it again and the idle would stay at 2000rpm.

    So the next day I was at a red light and again, mid-day, suns shining, probably 65-70 degrees and I'm idling at 2000rpm.

    I bled the coolant but it still does it.

    Any ideas?
    Tags: None
    #2
    Any ideas. I guess I'll screw with my TPS again. I hate playing with it.

    Comment

      #3
      Did you run your throttle cable a different way? As if it's getting stuck somehow? Mine did this when I ran my kickdown cable OVER my line that goes from the intake piping to the valve cover. You're a 5 speed though, so try checking if you need to loosen the cable a little where it's braced on the plenum with the adjusting bolts. Here's a thread with somewhat of the same problem. h22 though, but it should definitely help.
      http://www.cb7tuner.com/vbb/showthre...kickdown+cable
      98' Mustang 3V Swap
      11' VW CC R36

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        #4
        Originally posted by MyCord View Post
        Any ideas. I guess I'll screw with my TPS again. I hate playing with it.
        I would go over the base idle setup procedure. You should set TPS at 0.45V closed and be done with it. Make sure the readings smoothly increase to WOT (max. atleast 4.5V) Don't keep fooling around with it, otherwise that may be the source of your problem as you don't know what you're doing.
        HondaFan81 For Sale Parts (LOW PRICES ON EVERYTHING)

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          #5
          Yea I'll just do the whole procedure. I did it properly but I don't think I tightened it down enough because today it was idling high again and then it did the rev up/down business again.

          Thanks

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            #6
            This happened to me a while back when I was stuck in BAD bumper to bumper traffic for like an hour and a half. After like 30min my car started over heating so i pulled over and popped the hood. The only thing I saw was that my crappy expansion tank was leaking so i shut the car off and let it cool down. After that its never happened again and ive been stuck in worse traffic. Idk what the problem really was but ive found that if im careful with the clutch it doesnt happen.

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