High idle after afm and icv cleaning - **FIXED** SEE LAST POST

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • amcink
    Mod Crazy
    • Jan 2012
    • 788

    #1

    High idle after afm and icv cleaning - **FIXED** SEE LAST POST

    I have a high idle after cleaning the afm and icv (they were very dirty)
    No hoses werw touched so no vacum. The idle before wasat 900 steady now it flunctuate between 1100 an shoots to 1500 and then back and that is all is doing oing back and forth.
    Also iclean the icv with break cleaner. Did i mess up?
    Last edited by amcink; 11-14-2012, 06:14 PM.
  • dnguyen1963
    R3VLimited
    • Nov 2011
    • 2648

    #2
    Check the elbow that goes into the throttle body. Every time you touch the ICV you can create a vacuum leak there. Most users JB weld that sucker tight.

    Comment

    • amcink
      Mod Crazy
      • Jan 2012
      • 788

      #3
      I made sure the icv was well plugged to the elbow no vacuum there

      Comment

      • DÌEGØ
        Mod Crazy
        • Feb 2010
        • 690

        #4
        It sounds like a vacuum leak
        Driving:1990 325iS, 2007 335i :devil:
        past BMWs: 1987 325iS turbo, 1989 325i, 1995 525i, 2000 328CI, 2001 540i, 2008 135i

        Comment

        • dnguyen1963
          R3VLimited
          • Nov 2011
          • 2648

          #5
          Your symptoms are classical vacuum leaks. Time for a smoke test.

          Comment

          • amcink
            Mod Crazy
            • Jan 2012
            • 788

            #6
            That is strange since this morning the car is idle perfect then i clean the fm and icv and this happen. I will wait until tomorrow and turn the car on again it might be that the chemicals still to rich inside rhe icv and afm

            Comment

            • DÌEGØ
              Mod Crazy
              • Feb 2010
              • 690

              #7
              Yeah if it just did it for a few seconds that could be the case. Drive it a few miles and see if it changes.
              Driving:1990 325iS, 2007 335i :devil:
              past BMWs: 1987 325iS turbo, 1989 325i, 1995 525i, 2000 328CI, 2001 540i, 2008 135i

              Comment

              • amcink
                Mod Crazy
                • Jan 2012
                • 788

                #8
                Ok i guess i f'ed up the icv. The idle still does not settle, it fluctuates between 1000 and 1500 other than everything is fine and no lights are on. Any other ideas?

                Comment

                • DÌEGØ
                  Mod Crazy
                  • Feb 2010
                  • 690

                  #9
                  go buy some swishers and smoke it lol seriously that's what I do when I don't have access to a smoke machine and it works.

                  I don't think you could have messed up the ICV, if anything the AFM is a bit more touchy...
                  Driving:1990 325iS, 2007 335i :devil:
                  past BMWs: 1987 325iS turbo, 1989 325i, 1995 525i, 2000 328CI, 2001 540i, 2008 135i

                  Comment

                  • amcink
                    Mod Crazy
                    • Jan 2012
                    • 788

                    #10
                    Ok but where do i blow the smoke at?

                    Comment

                    • DÌEGØ
                      Mod Crazy
                      • Feb 2010
                      • 690

                      #11
                      The vac hose going to the FPR is a good one
                      Driving:1990 325iS, 2007 335i :devil:
                      past BMWs: 1987 325iS turbo, 1989 325i, 1995 525i, 2000 328CI, 2001 540i, 2008 135i

                      Comment

                      • amcink
                        Mod Crazy
                        • Jan 2012
                        • 788

                        #12
                        Just read about to look at the TPS

                        Comment

                        • dnguyen1963
                          R3VLimited
                          • Nov 2011
                          • 2648

                          #13
                          Dude...it is easy to do a smoke test. It is best to eliminate any possibility of vacuum leaks before looking at other components when you have weird idling issues.

                          Comment

                          • amcink
                            Mod Crazy
                            • Jan 2012
                            • 788

                            #14
                            Will try the smoke test with the swishers. I'm just puzzle that everything was fine in the morning did the cleaning and put them back and now a high idle. I'm frustrated with this ETA.

                            Comment

                            • dnguyen1963
                              R3VLimited
                              • Nov 2011
                              • 2648

                              #15
                              Have you tried to wiggle the elbow going into the throttle body? Every time someone tries to clean the ICV, he/she always manages to make that connection loose.

                              Comment

                              Working...