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  1. #1
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    1 out of 1 members liked this post. Yes Reputation No

    Limp mode after SC

    I had already contacted Active about this but while they're working on a solution, thought I'd tap into the collective brain here.

    Ive been installing the Gen 1 Level 2 Active Autowerke SC kit for the past 2 weeks. Finally got everything finished today and took it out for a spin. Took it easy while warming up. Cold start gone, whee. After warming up, decided to give it a bit(I didn't think I need to break it in since it's a used kit). Didn't do anything crazy, just accelerated from a stop sign. First gear, gave it a bit more gas to start and shift at 3k rpm, decided to give it 60% pedal and revs climbed and just as I felt boost building, LIMP MODE. Bah. Went to Autozone to get it read and it's coming up as P0639-throttle actuator.

    Ideas? Vehicle was running fine prior to this so it would be weird for something to break while it's been sitting for 2 weeks. But who knows? I did restart the vehicle and it cleared itself. Gave it gas again and same thing. While cruising in 5-6th gear, I decided to downshift and see if I can maintain above 3k rpms and it was fine. Went all the way to 5k before I stopped(speed limit).

  2. #2
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    If it's repeating itself then obviously this isn't an isolated issue. I wish I had something to add but I have no clue. Active will solve it though.

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

  3. #3
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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    If it's repeating itself then obviously this isn't an isolated issue. I wish I had something to add but I have no clue. Active will solve it though.
    Thanks for the reply Sticky. I -think- I might have found the solution. Someone said that they had a similar problem in an e46 M3 after installing SC kit and it seems the clamps were touching the throttle body rails or something along those lines. I had trouble reusing the stupid bottom clamps and replaced them with screwed in clamps(flat head rotates to tighten them) and I am wondering if that is interfering with the throttle body movement. Is there a trick to using/reusing those clamps? I tried pushing the tabs inwards using two flat heads and they were a total biatch. Was able to get two on and couldn't any more, decided to use the screwed in clamps for the rest.

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    Click here to enlarge Originally Posted by Graynor Click here to enlarge
    Thanks for the reply Sticky. I -think- I might have found the solution. Someone said that they had a similar problem in an e46 M3 after installing SC kit and it seems the clamps were touching the throttle body rails or something along those lines. I had trouble reusing the stupid bottom clamps and replaced them with screwed in clamps(flat head rotates to tighten them) and I am wondering if that is interfering with the throttle body movement. Is there a trick to using/reusing those clamps? I tried pushing the tabs inwards using two flat heads and they were a total biatch. Was able to get two on and couldn't any more, decided to use the screwed in clamps for the rest.
    That may be it I don't know but why just get new clamps and redo it?

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

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    I called Active and ran past my ideas regarding the boot/clamps getting in the way of the throttle body and they reminded me that I was supposed to use the new boots and clamps, not the stock ones. Uh doh! I had reused the stock ones so back to removing that plenum tonight. I'll have to be a bit more vigilant about where the screws on the clamps end up so the throttle body rails can move freely.

  6. #6
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    Click here to enlarge Originally Posted by Graynor Click here to enlarge
    I called Active and ran past my ideas regarding the boot/clamps getting in the way of the throttle body and they reminded me that I was supposed to use the new boots and clamps, not the stock ones. Uh doh! I had reused the stock ones so back to removing that plenum tonight. I'll have to be a bit more vigilant about where the screws on the clamps end up so the throttle body rails can move freely.
    Ok well try the new pieces and let us know if that fixes it. This is the first I've heard of something like this.

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

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    1 out of 1 members liked this post. Yes Reputation No
    Will report back!

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    Sounds like the clamp hitting the throttle to me done that before.... done a couple AA kits now and just love the product. good luck and enjoy it when you get it happy

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    Yep that fixed it. Took it apart and sure enough no more
    limp mode! Feels good for sure. It's raining right now so I couldn't really explore its limits. Will do tomorrow though!

  10. #10
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    Click here to enlarge Originally Posted by Graynor Click here to enlarge
    Yep that fixed it. Took it apart and sure enough no more
    limp mode! Feels good for sure. It's raining right now so I couldn't really explore its limits. Will do tomorrow though!
    Awesome! Well, glad to hear you diagnosed and fixed it properly. Well done.

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

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    2 out of 2 members liked this post. Yes Reputation No
    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Awesome! Well, glad to hear you diagnosed and fixed it properly. Well done.
    Thanks Sticky! Even a blind squirrel gets a nut sometimes ;p

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    Yeah in the VF and ESS kit instructions, there's several 'warning' labels that say to take special care of clearing the throttle linkages. It's an electronic throttle so it's not something you'd physically feel in the pedal when you press down.

    nice to see you got it going Click here to enlarge

  13. #13
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    Vids pls
    - Proven Power Tampa built 6466 ST -
    - N54 6AT WR 711whp 637wtq-
    -N54 WR 1/4mile trap: 133.57mph- -

  14. #14
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    I'll upload a vid as soon as all the issues are cleared up- another one appeared. Seems like it rough idles on warm starts. Doesn't happen on cold starts but if I got the car up to temp, turned it off and turned it back on, it'll rough idle(couple of revs) and then stalls. I can give it some gas to get it to settle down and not stall but sounds stupid. Active said these older injectors seem to be the culprit but forking over $600 for new injectors would make this budget build into a "should have gotten an ESS used kit". That and I'm also concerned as some cars showing similar symptoms had needed ICV replaced.

  15. #15
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    Getting new injectors really isn't a bad idea...

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
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  16. #16
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    43whp with the new injectors worth it

  17. #17
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    Click here to enlarge Originally Posted by Ging Click here to enlarge
    43whp with the new injectors worth it
    If that's how big it is then hell yes it's worth it!

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

  18. #18
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    1 out of 1 members liked this post. Yes Reputation No
    I went ahead and ordered the new injectors 2 days ago since another issue also came up, possibly due to injectors: exhaust smell in the car itself. I'm catless but never had that issue prior. Read up that it could be due to the injectors putting out too much fuel. Tuning would help but the way it's rough idling due to the injectors, I think it'll solve both issues. And Active did tell me about the +40 whp so that alone is worth it ; p

  19. #19
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    Click here to enlarge Originally Posted by Graynor Click here to enlarge
    I went ahead and ordered the new injectors 2 days ago
    Smart move.

    Stage 2 or 2.5 E9X M3 S65 V8 supercharger kit for sale
    : http://www.boostaddict.com/showthrea...r-kit-for-sale

  20. #20
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    I have the Bosch Green Giant injectors on my AA G2L3 sc'r. The whole bloody kit is crazy, just crazy.

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