idle stepper motor - anyone had problems with it?

Discussion in 'General Technical Discussion' started by anthony, Oct 20, 2007.

  1. anthony

    anthony Leaving Skid Marks

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    any of you guys had problems with the stepper motor.looks like i May have to take mine out and clean it or get a new one.
     
  2. Gly

    Gly Guest

    it's semi common,

    most just need a good clean,
    some die due to not being cleaned and getting jammed.

    its no big deal.

    i have a spare working one just in case thou.
     
  3. leebutts

    leebutts 1 AYC Bar

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    What are the symptoms when a stepper motor goes? Stalling? Rough idle?

    cheers

    Lee
     
  4. Gly

    Gly Guest

    stalling, and/or idle serge
     
  5. hawks

    hawks Leaving Skid Marks

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    I had a 4G61 powered Lancer CB GSR that had a stepper motor problem.

    I ended up buying a front cut 4G61T and replaced the whole motor less turbo and then sold the car.

    You probably didn't want to hear that !
     
  6. J-B

    J-B Leaving Skid Marks

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    Sure we did mark lol
     
  7. anthony

    anthony Leaving Skid Marks

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    they cost £500 over here in england from Mitzi but camskill do them for £85.00. guys on cvr4 say they can be cleaned with brake cleaner but seems to be a short term remedy.i'll problery get the new 1 from camskill.
     
  8. Kieran

    Kieran Guest

    Yeah, as we've spoken about on CVR4, it's no big deal - The stepper motor used seems to be very similar to other 6A1x engines, so even if it's not the specified one (as in the camskill one, I think they're the FTO units) it'll fit and work fine, with maybe a touch of adjustment to the basic idle adjustment screw.

    Inlet cleaner/degreaser can free off a stepper that's playing up because it's bunged up with grot. Even cleaned ones can still be troublesome - They are just one of those units that occasionally 'goes' and getting all grotty certainly doesn't help them in this regard.

    I recall that was a way of testing them , but I can't remember it right now... probably because it's Stupid O'Clock and I really should go and rest......
     
    Last edited by a moderator: Oct 22, 2007
  9. trist

    trist Member

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    i just replaced the one in my 4g63 and that cost me $78 from bursons
     
  10. VOLK

    VOLK Stabbin' technique!

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    Looks like my idle stepper has ceased to live (stalling) but before I announce time of death can anyone clear a few things up for me?

    1: Does the ISC have a startup or self test routine? Mine doesn't move when powered or when starting.
    2: Which other models share the same part? FTO and other 6A equipped cars? Anything else AUDM we know of like magnas etc?
    3: Part number?

    thanks all
     
  11. VR-04-TT

    VR-04-TT 1 AYC Bar

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    Part number for ours is: MD628056 according to ASA it only relates to the Galant/Legnum 8 gen.

    6G7x is: MD628053 and MD628059. Unsure of what the differences are between the parts.

    This is where I got my replacement magna one from years ago: http://www.nardek.com.au/isc.htm

    They also used to have a page on how to test the ISC for faults, but I can't find it there anymore.
     
  12. VOLK

    VOLK Stabbin' technique!

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    Thanks for the info. Pity Mits didn't dig in the parts bin and pinch one from something common. Anybody know the location of the test routine?
     
  13. pu-11-me

    pu-11-me and put an LSD in it

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  14. VOLK

    VOLK Stabbin' technique!

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    Unfortunately not the same as facelift. Facelift here.
     
  15. VR-04-TT

    VR-04-TT 1 AYC Bar

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    Interesting as I can only find one part number for the stepper motor across the years on ASA?
     
  16. king_panther

    king_panther Gettin' tanked

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    That page also shows the ASA part number that Paul is referring to. Where does it say it's for a Facelift?????

    I've got one for sale that Paul linked to. I don't have the ring part though. $80.
     
  17. VR-04-TT

    VR-04-TT 1 AYC Bar

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    Correction, there are two part numbers. Not sure how to determine which is which though. It seems Brad you have MD614978 (due to the E9T15298 printed on the part), however I'm unsure as to whether or not this is PFL or FL as I can't read Japanese.


    Line "O" refers to us:

    ISCpartnumbers1.jpg

    And how to identify which is which, but what they apply to I don't know:

    ISCpartnumbers2.jpg
     
    Last edited: Sep 27, 2010
  18. king_panther

    king_panther Gettin' tanked

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    So it looks as though you can also use one from a 6A12 (FTO), & those engines also have 4 possible part numbers?
    You would think by looking at it that PFL are on the left & FL are on the right, but that would be in English.
     
  19. ygoslo

    ygoslo 1 AYC Bar

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    Highly likely that FTO ones would fit. I'm not surprised that they're the same part because they are also known to fail in FTOs.
     
  20. gorgath

    gorgath Leaving Skid Marks

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    so does anyone know the right process on how to clean??
     

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