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2000 S70 non turbo, occasionally runs poor and no acceleration S70

posted by  hammerhead on  Mon Apr 30 20:15 CST 2012
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last visit: Thu Oct 16 10:32 CST 2014
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My S70 will intermitantly go into limp mode and the motor will run very rough. It will run like that for a period of time then run fine. Sometimes I will just let it sit for a while and when I start it up again it will run fine. I felt the accelerator run at a certain RPMs even without my foot on the peddle. Engine analyzer gave me the following:

P1610 - Immobilization system malfuctioning

P1620 - Injection pump (Throttle Position switch)

P0220 - Throttle pedal position sensor / switch B

Need all the help I can get,

Thanks

Mike








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    2000 S70 non turbo, occasionally runs poor and no acceleration S70

    posted by  KlausC on  Tue May 1 19:22 CST 2012
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    last visit: Fri Oct 24 10:15 CST 2014
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    Check your ETM next to the throttle body. If it has a white sticker, it is failing and will soon leave you stranded.

    Dealer replacement is quite expensive. Take a look at www.xemodex.com for a rebuilt that will not fail and no programming required by the dealer.

    Klaus
    --
    My name is Klaus and I am a V ♂ lv ♂ holic








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      2000 S70 non turbo, occasionally runs poor and no acceleration S70

      posted by  hammerhead on  Wed May 2 07:47 CST 2012
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      last visit: Thu Oct 16 10:32 CST 2014
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      Klaus,

      I was hoping that you would advise just replacing the throttle position switch, if that even exists.

      However,there is a yellow sticker on the bottom of the throttle body. Not sure if the throttle body is the same as the ETM?

      Also, in July of 2003 there is an entry in the maintenance printout that indicates the following:

      "ECM code 620A for interal fault in throttle unit, replaced throttle unit, download software, reset codes" I didnt own the car at that time however I requested the previous owners maintenance record printout when I made the purchase.

      Does this make my problem any easier to solve?

      Thank you,
      Mike







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        2000 S70 non turbo, occasionally runs poor and no acceleration S70

        posted by  KlausC on  Wed May 2 09:50 CST 2012
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        last visit: Fri Oct 24 10:15 CST 2014
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        While there is a throttle position switch on the firewall, it is the P1600 codes that refer to the ETM, P1610 is signal too high and the other is no signal. Generic code readers do not always get the error text correct.

        You could try cleaning the plug at the ETM, use dielectric grease to keep water out of the plug. And, yes, the ETM box is on the front of the intake manifold next to the butterfly valve.

        The 1999-2002 NA engines had problems with the ETM longer than the turbo engines, even with the yellow boxes.

        Supposedly, you can go to a dealer and get the codes read for free if the CEL is on. Call and ask. If they want to replace the ETM, say no thank you and call xemodex for a permanent fix.

        Klaus
        --
        My name is Klaus and I am a V ♂ lv ♂ holic








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          2000 S70 non turbo, occasionally runs poor and no acceleration S70

          posted by  Mr. Detail on  Mon May 28 15:46 CST 2012
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          last visit: Mon Sep 8 11:44 CST 2014
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          Klaus, What does "ETM" satnd for please?








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            2000 S70 non turbo, occasionally runs poor and no acceleration S70

            posted by  KlausC on  Mon May 28 19:16 CST 2012
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            last visit: Fri Oct 24 10:15 CST 2014
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            Electronic Throttle Module. No cable from the gas pedal to the throttle pedal. The module resides just below the throttle body.
            --
            My name is Klaus and I am a V ♂ lv ♂ holic







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