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ENG : Erratic idle how to fix it

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    #16
    ......

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      #17
      Originally posted by rudeboy5 View Post
      I'm having the same prob. I change my IAC motor and cleaned it and even tightened the white valve in the fast idle. But it only idles funny when it warms up. What else could it be?
      it'll idle high when its warming up, to warm up a bit faster.

      is that what you are referring to? or a surging idle only felt when the engine is warming up?

      ^^click it or ticket^^

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        #18
        ok i have the same problem, but iam getting 2 codes in my cel, one is code 1 (o2 sensor) and the other is code 12 ( egr lift valve), do you think they came up because i have an exhaust leak?

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          #19
          Originally posted by rudeboy5 View Post
          I'm having the same prob. I change my IAC motor and cleaned it and even tightened the white valve in the fast idle. But it only idles funny when it warms up. What else could it be?
          mine does the same thing, only when it warms up once temp guage starts incressing in temp it stays at like 15!!??
          <a href="http://viewmorepics.myspace.com/index.cfm?fuseaction=viewImage&friendID=69766163&a lbumID=2514992&imageID=53057155"><img src="http://hotlink.myspacecdn.com/images02/64/857639fdf04f4f459e4573e823180161/m.jpg" alt="" /></a>

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            #20
            I apologize for replying to this old thread, but this can be fixed to work correctly with two o-rings. At your local hardware store, they should have a selection of o-rings with the plumbing repair parts. A #29 size fits the cover groove; #32 fits the pale yellow piston. (Just to be sure, take the old rings with you to match the size).

            1. Remove the cover.
            2. Remove the cover o-ring (it has typically turned to a brittle plastic).
            3. Unscrew the yellow piston.
            4. Remove the o-ring from the piston (again, it may break like plastic).
            5. Install the #32 o-ring on the piston.
            6. Lightly lubricate the inside of the FITV with WD40 or other spray lubricant (this helps the new o-ring slide as you thread the piston back in).
            7. Install the piston. Turn it all the way down, then back off about 2 complete turns. This should put your cold idle between 1500 and 2000 rpm.
            8. Install the cover o-ring in the groove.
            9. Install the cover.

            If the cold idle is too high/low for your taste, turn the piston out to increase the cold idle speed, in to decrease.

            For more information on operation and complete disassembly/reassembly of the FITV: http://www.cb7tuner.com/vbb/showthread.php?t=206012
            Last edited by Fleetw00d; 02-01-2017, 01:42 PM.
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