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*Closed* 20% Off Supercharger Group Buy 2nd Gen 4.0 Engine

Discussion in 'Group Buys' started by big_jarv, Oct 6, 2016.

  1. Jan 11, 2017 at 11:47 AM
    #3241
    moodywizard

    moodywizard Well-Known Member

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    What can I use to see when I'm in open or closed loop? Gadget says the Toyota ecu flash has it so it goes open loop when in boost meaning anytime there is + psi? If that's the case think I'm going to call the dealer...
     
  2. Jan 11, 2017 at 12:04 PM
    #3242
    tacomavoyager

    tacomavoyager Well-Known Member

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    Check engine light came on about two weeks. Tried clearing the code a few times with no luck. Drove it 100 miles with no light. Then it popped back up.
    I not sure if its supercharger related. Hard to say. Don't want to point the blame.
     
    Biscuits likes this.
  3. Jan 11, 2017 at 12:23 PM
    #3243
    jberry813

    jberry813 The Mad Scientist

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    ...too much shit to list.
    Has anyone contacted BD or Magnuson about their issues?
     
  4. Jan 11, 2017 at 12:27 PM
    #3244
    FinnJ

    FinnJ Well-Known Member

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    ScanGaugeII or similar. ECU can't see boost, closed loop is somehow based on air flow and gas pedal position = load, I think.
     
    Norton and moodywizard like this.
  5. Jan 11, 2017 at 12:39 PM
    #3245
    moodywizard

    moodywizard Well-Known Member

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    Anyone running a scangauge to confirm when they are going into open loop?

    When people say in boost are they talking about anytime there is positive psi? Or boost as in open loop and hauling ass?
     
  6. Jan 11, 2017 at 12:44 PM
    #3246
    zscott

    zscott Well-Known Member Vendor

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    My installer has talked to both about the addition of the 2.85 pulley. BD confirmed that the 2.85 tune is only for stock intakes but it sounds like even then some people are having issues.
     
  7. Jan 11, 2017 at 12:44 PM
    #3247
    FinnJ

    FinnJ Well-Known Member

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    I have ScanGauge in my FJ, that's how I know is it closed or open loop. Fuel trims are also very useful info.
     
  8. Jan 11, 2017 at 12:49 PM
    #3248
    zscott

    zscott Well-Known Member Vendor

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    For those with the automatic transmission, how are your shift points?
     
  9. Jan 11, 2017 at 12:51 PM
    #3249
    memario1214

    memario1214 Vivid Illumination Vendor

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    Yeah, I gots boost
    "How" are they? Something in specific you are looking for? Roughness of shifting? RPMs at which the gear change occurs?

    Help us help you!
     
  10. Jan 11, 2017 at 12:51 PM
    #3250
    TacoCat

    TacoCat Look away, I'm hideous!

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    Sucks to hear. Maybe it was already failing and the SC put it over the edge. At least its covered under the warranty or TSB. Hope it is back up and running soon.
     
    tacomavoyager likes this.
  11. Jan 11, 2017 at 12:55 PM
    #3251
    zscott

    zscott Well-Known Member Vendor

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    Just in general. Mine shifts smoothly but from gears 1-3 it shifts so fast that its like they aren't even there.

    Just curious how everyone else's changed after installing the supercharger.

    Mainly curious about those with the Magnuson and BD combo. I think it is safe to say that the BD tune has some different characteristics than the TRD reflash.
     
  12. Jan 11, 2017 at 1:15 PM
    #3252
    moodywizard

    moodywizard Well-Known Member

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    Are you on the bd tune? Do you go into open loop when any boost (positive psi) is present?
     
  13. Jan 11, 2017 at 1:42 PM
    #3253
    memario1214

    memario1214 Vivid Illumination Vendor

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    Yeah, I gots boost
    Ha okay I will stay out of it then. I was just thinkin that some clarity would help out.

    FWIW on the reflash my truck shifts HARD 1-3 and bangs through gears. The higher numbers are much smoother.
     
  14. Jan 11, 2017 at 1:43 PM
    #3254
    zscott

    zscott Well-Known Member Vendor

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    Sounds similar to mine. It is still pretty smooth but its so fast I am like WTH just happened.
     
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  15. Jan 11, 2017 at 1:51 PM
    #3255
    memario1214

    memario1214 Vivid Illumination Vendor

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    Yeah, I gots boost
    Ha it's that newfound inertia that ye olde drivetrain is experiencing
     
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  16. Jan 11, 2017 at 1:56 PM
    #3256
    FinnJ

    FinnJ Well-Known Member

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    No, Unichip. It's closed loop quite a long, it's almost at full throttle when it's open. So, there is quite a lot boost in closed loop too (I have not a boost gauge).
     
  17. Jan 11, 2017 at 2:03 PM
    #3257
    trekker

    trekker Never waste a nice day.

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    Mine runs great on the BD tune, but I tend to be easy on it since I don't have an AFR gauge hooked up yet. Shifts are similar to what has been mentioned here already. I have the stock pulley and was wanting to upgrade to the 2.85" this spring. I'm leaning against that given all the issues mentioned here. Hopefully BD can get us an updated tune that performs better without throwing codes... but I'm not going to hold my breath for that.
     
  18. Jan 11, 2017 at 2:09 PM
    #3258
    moodywizard

    moodywizard Well-Known Member

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    That's the normal operation from what I keep reading. I was looking at getting the urd afr cal, you are able to richen up the closed loop with it. Although for a little more can get the map ecu 3 for more adjustability.

    I never thought I would get this entailed into engine management haha
     
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  19. Jan 11, 2017 at 2:13 PM
    #3259
    zscott

    zscott Well-Known Member Vendor

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    I just got an email back from magnuson today that they may be adding more tunes in the future but for now their goal was to get one well functioning tune that was CARB compliant
     
  20. Jan 11, 2017 at 2:18 PM
    #3260
    trekker

    trekker Never waste a nice day.

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    That's good news, thanks Zach. :thumbsup:
     

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