Checking Idle Speed

Discussion in 'General Motoring' started by Dave, Mar 1, 2004.

  1. Dave

    Dave Guest

    1993 Saturn 1.9l dohc
    I have this old engine diagnostic meter that is supposed to hook up to the
    coil to check the RPMs. Is there someplace to hook this up? To check the
    idle speed. The Chilton's says I need to hook up a "IAC tester" and a "PDT
    scan tool to the ALDL connector". Can please someone please give me a
    break?
    Dave
     
    Dave, Mar 1, 2004
    #1
  2. Dave

    Lane Guest

    If your Chilton manual has wiring diagrams, look for the lead for tach/rpm
    from the underhood ignition module to the PCM. For some reason, I believe
    it's a white wire. This is off of memory from a while ago, so someone
    please correct me if I'm wrong.

    Lane [ l a n e @ p a i r . c o m ]
     
    Lane, Mar 1, 2004
    #2
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