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  • #1

    Ignition Switch Tests

    Ok, so I tried searching and came up empty handed. As I posted in another thread, I think my ICM problem has got something to do with my ignition switch itself. I am only getting 11.78 volts at the + coil wire, but 12.4 volts at the battery. This may or may not be acceptable. I don't know. Does anyone know a way to test the ign. switch, or maybe give me a diagram of how it works, and what wires should carry what kind of juice through them? I would love to take this little car down to FM4, but I need to get it running and dependable for a few hour drive each way. Please and Thanks!

    1989 Festiva L 4spd
    Last edited by doylerl; 08-31-2010, 07:09 PM.
    The normal is not always normal... MOST is not ALL... And any job can be hard if you don't have the right tools!!!

    My Fleet:
    89 L 4spd (Daily Driver(if it isn't broke down)) "Spanky"
    Tags: None
  • #2
    I fixed a problem with mine by squriting WD-40 in the keyhole.
    Original owner of silver grey carburetted 1989 Festiva. 105k km as of June 2006. 140k km as of June 2021.

    Comment

    • #3
      Are you sure the problem isn't an internal one in the distributor? I had one that would pop modules at no particular interval. Turns out that Jim (FB71) finally clued me in that I had an internal grounding problem inside the distributor. It has been the only distributor to ever give me this trouble of all my cars.

      HTH
      Michael
      Have owned 9 so far
      White 89 L converted to LX "The Curmudgeon" Being a Curmudgeon right now.
      Blue 89 L converted to LX "Shtinky" FMS crate engine,cam,flywheel,hail dents
      Smurf Blue 90 LX "Smurffy" He Ran Away From Home!!!!!! Says Willie loves him more than I did!
      Red 88 L converted to LX "Rasta, Mon" Now retired
      Where did all these @#*&%$ Toyotas come from around here?

      Comment

      • #4
        Originally posted by m715 View Post
        Are you sure the problem isn't an internal one in the distributor? I had one that would pop modules at no particular interval. Turns out that Jim (FB71) finally clued me in that I had an internal grounding problem inside the distributor. It has been the only distributor to ever give me this trouble of all my cars.

        HTH
        Michael
        Thanks for the response, but I have replaced the entire disty several times and always get the same issue.
        The normal is not always normal... MOST is not ALL... And any job can be hard if you don't have the right tools!!!

        My Fleet:
        89 L 4spd (Daily Driver(if it isn't broke down)) "Spanky"

        Comment

        • #5
          Are your engine grounds, and the chassis ground just off the battery terminal clean, tight, etc?
          ( I know, I sound like a broken record, but jim was adament that a bad ground builds up heat and pops modules)
          Last edited by m715; 09-01-2010, 04:27 PM.
          Have owned 9 so far
          White 89 L converted to LX "The Curmudgeon" Being a Curmudgeon right now.
          Blue 89 L converted to LX "Shtinky" FMS crate engine,cam,flywheel,hail dents
          Smurf Blue 90 LX "Smurffy" He Ran Away From Home!!!!!! Says Willie loves him more than I did!
          Red 88 L converted to LX "Rasta, Mon" Now retired
          Where did all these @#*&%$ Toyotas come from around here?

          Comment

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