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  1. #51
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    yes, limp will go to a no boost failsafe. IIRC though, an overboost could cause the same, but would restart normally until overboost happens again

    dont hold me to that though, its been about a year now since ive had a 335

  2. #52
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    Click here to enlarge Originally Posted by LostMarine Click here to enlarge
    yes, limp will go to a no boost failsafe. IIRC though, an overboost could cause the same, but would restart normally until overboost happens again

    dont hold me to that though, its been about a year now since ive had a 335
    this is correct, depending on what happens it will lower boost, I have had it CEL to 0psi / 3psi / 8psi, After restart some of them will be ignored and full boost, others will continue the failsafe boost dump.




  3. #53
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    Click here to enlarge Originally Posted by E90SoFlo Click here to enlarge
    this is correct, depending on what happens it will lower boost, I have had it CEL to 0psi / 3psi / 8psi, After restart some of them will be ignored and full boost, others will continue the failsafe boost dump.
    Ok this is helpful. What has to be done to clear that and bring the car out of limp mode? The customer says he cleared all the codes already.

  4. #54
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    It depends on the cause of the limp mode. We need to know what the codes are in order to suggest fixes.
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  5. #55
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    if its been cleared and limps right away again, its mechanical. could be actual hardware, or even something like the map/tmap coming loose (i had that happen one day)

    some of those connections may seem tight, but wont be. u need to push/pull/squeeze all of them, rigorously

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    Click here to enlarge Originally Posted by bigdnno98 Click here to enlarge
    It depends on the cause of the limp mode. We need to know what the codes are in order to suggest fixes.
    this. its most likely a mechanical fix thats required if its limping on start up, but we need codes to help determine the fix.

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    dammit lm beat me to it.

  8. #58
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    I'm so anxious to see the dyno result I wish I could head over to the OPs house and work on the car. Lol
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    1 out of 14 members liked this post. Yes Reputation No

    This post by vasillalov is hidden due to excessive negative ratings. Click expand to view the post.


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    +1...Gotta post the codes also

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    1 out of 1 members liked this post. Yes Reputation No
    Click here to enlarge Originally Posted by vasillalov Click here to enlarge
    I don't mean to call you out on this, but SERIOUSLY???! A supposedly well reputable custom turbo tuner has no idea what the car will do in limp mode? That's common stuff mate, not specific to N54 engine, let alone BMW. Virtually ALL turbo engines for the past 10 - 20 years come with some sort of a limp mode operation...
    since when were they a turbo tuner? they aren't even providing the tuning here... additionally their background is primarily industrial..
    Last edited by Daily Three; 10-02-2012 at 02:35 PM.

  12. #62
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    Click here to enlarge Originally Posted by vcodlalov Click here to enlarge
    I don't mean to call you out on this, but SERIOUSLY???! A supposedly well reputable custom turbo tuner has no idea what the car will do in limp mode? That's common stuff mate, not specific to N54 engine, let alone BMW. Virtually ALL turbo engines for the past 10 - 20 years come with some sort of a limp mode operation...
    Not all ECUs "limp" in the same way. Tony knows what limp mode does but wants N54 specifics to be better able to track down the cause.
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  13. #63
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    Click here to enlarge Originally Posted by vasillalov Click here to enlarge
    I don't mean to call you out on this, but SERIOUSLY???! A supposedly well reputable custom turbo tuner has no idea what the car will do in limp mode? That's common stuff mate, not specific to N54 engine, let alone BMW. Virtually ALL turbo engines for the past 10 - 20 years come with some sort of a limp mode operation...
    Tuners and suppliers are two different things. I'm having problems with my 6758 EFR, it's not tuning it's hardware as my tuner states. Not an easy fix esp since they are protoype pretty much. Relax buddy, this is literally the first guy with these turbos. Not everything will be running perfect the first time.
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  14. #64
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    Click here to enlarge Originally Posted by vasillalov Click here to enlarge
    I don't mean to call you out on this, but SERIOUSLY???! A supposedly well reputable custom turbo tuner has no idea what the car will do in limp mode? That's common stuff mate, not specific to N54 engine, let alone BMW. Virtually ALL turbo engines for the past 10 - 20 years come with some sort of a limp mode operation...
    Been stated many times. We build turbochargers and have for 40 years, also been stated we are new to the N54 platform. We don't plan on doing many installs this kid is local and actually did the install himself and had quite a tough time in his driveway. I took the car in to our install facility and removed the turbos and did the install properly and charged him a whopping 2 hours labor. He drove the car for 2 days and has some problems. You are QUITE correct, limp home is nothing new. Why don't you tell me off the top of your head some reasons a Duramx 6.6 liter turbo diesel might be in limp home mode, and the best way to approach curing it. Pretty sure you cannot while on the other hand I could, based on experience. Bottom line is, I am not a tuner, never claimed to be one and when it comes to tuning these cars I will leave it to people who do it for a living. Looks like I have found the first person I wont be selling any products too. Have a good day man.

  15. #65
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    Vacuum lines running under the engine cover are so terrible on this car. I had one of them melt, and obviously could not see it until we took the engine cover off. They turn to this thin plastic under the engine cover, we replaced with strong rubber and never looked back..

  16. #66
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    Click here to enlarge Originally Posted by VargasTurboTech Click here to enlarge
    Looks like I have found the first person I wont be selling any products too. Have a good day man.

    No worries! I don't buy hardware without the necessary software. Click here to enlarge
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  17. #67
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    Click here to enlarge Originally Posted by vasillalov Click here to enlarge
    I don't mean to call you out on this, but SERIOUSLY???! A supposedly well reputable custom turbo tuner has no idea what the car will do in limp mode? That's common stuff mate, not specific to N54 engine, let alone BMW. Virtually ALL turbo engines for the past 10 - 20 years come with some sort of a limp mode operation...
    They build turbos, not tune them. Cut the guy a break.

  18. #68
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    Click here to enlarge Originally Posted by vasillalov Click here to enlarge
    I don't mean to call you out on this, but SERIOUSLY???! A supposedly well reputable custom turbo tuner has no idea what the car will do in limp mode? That's common stuff mate, not specific to N54 engine, let alone BMW. Virtually ALL turbo engines for the past 10 - 20 years come with some sort of a limp mode operation...
    seriously?

    Click here to enlarge Originally Posted by vasillalov Click here to enlarge
    No worries! I don't buy hardware without the necessary software. Click here to enlarge
    dont you have a modded 335?

  19. #69
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    Click here to enlarge Originally Posted by vasillalov Click here to enlarge
    I don't mean to call you out on this, but SERIOUSLY???! A supposedly well reputable custom turbo tuner has no idea what the car will do in limp mode? That's common stuff mate, not specific to N54 engine, let alone BMW. Virtually ALL turbo engines for the past 10 - 20 years come with some sort of a limp mode operation...
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  20. #70
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    installing turbo's in a drivway is gnarly.

    Tony email me Cameron@livinginswflorida.com

    I can try to help from my knowledge of boost leaks boost problems that I have had




  21. #71
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    0 out of 1 members liked this post. Yes Reputation No
    Click here to enlarge Originally Posted by vasillalov Click here to enlarge
    No worries! I don't buy hardware without the necessary software. Click here to enlarge


    The "necessary software" for the Vargas Turbos is NO different if you bought the RBs, ASRs, TDs OR even the Vishnu Single. You're gonna pick from either COBB, JB4 or the PROcede, run the appropriate ProTune/Map for upgradded turbos & rip. The car sounds like it was running fine until a SOFTWARE issue (whether it was the tune or the DME's safety net), not the actual turbos.
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  22. #72
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    Click here to enlarge Originally Posted by vasillalov Click here to enlarge
    I don't mean to call you out on this, but SERIOUSLY???! A supposedly well reputable custom turbo tuner has no idea what the car will do in limp mode? That's common stuff mate, not specific to N54 engine, let alone BMW. Virtually ALL turbo engines for the past 10 - 20 years come with some sort of a limp mode operation...
    This comment is ridiculous, rebuilding turbos and diagnosing a n54 boost issue are totally different things. Do you expect the turbo manufacturers to understand every application thier turbos are used for? It doesn't work that way. Garrett, kkk, Mitsubishi turbos etc are used on many platforms and all kinds of applications from marine engines to generators, to on highway trucks, etc.

    I wouldn't expect Vargas to understand the n54 dme logic.
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  23. #73
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    Click here to enlarge Originally Posted by bobS Click here to enlarge
    This comment is ridiculous, rebuilding turbos and diagnosing a n54 boost issue are totally different things. Do you expect the turbo manufacturers to understand every application thier turbos are used for? It doesn't work that way. Garrett, kkk, Mitsubishi turbos etc are used on many platforms and all kinds of applications from marine engines to generators, to on highway trucks, etc.

    I wouldn't expect Vargas to understand the n54 dme logic.
    I'm rather amazed myself by the absurdity of his comment... seems everyone let him know.
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  24. #74
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    Maybe vasillalov was having a bad day or something. I usually find his posts helpful and informative.
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    Maybe she's having her period?
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