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  1. #1
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    Did some datalogging: a cookie for the first one to identify a problem

    Took the car out to do some datalogging yesterday.

    I think this says everything: Click here to enlarge

    BTW, car funs fine after clearing codes. It went into a no boost mode that made it run like crap and scared me to death! Code cleared and she seems to be as good as ever. Good thing I was relatively quick with clutching back in!
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    2009 335i: PROcede V4 with BMS DCI (still not sure how they get along!)

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    Those are some high rpms sir. Did miss shift or down shift on auto?

    I like chocolate chip cookies. Click here to enlarge

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    3rd to 2nd instead of 4th (6MT). I saw the tach going for the oil temp guage and pushed the clutch in but not before the ECU went into no boost for you mode.

    I cleared the codes using the PROcede and all appears to be well now. I'll make sure I NEVER do that again!
    2009 335i: PROcede V4 with BMS DCI (still not sure how they get along!)

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    Click here to enlarge jeez luckily you did not $#@!up a valve or something else.....
    07 335i AT - MOTIV 750 - MHD BMS E85 - BMS PI - JB4G5 - Okada Coils - NGK 5992 Plugs - Helix IC - Stett CP - Custom midpipes with 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - LUX H8 - Level 10 AT upgrade
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    Wow - is that really 9500 RPM? Looks like you got away with a free money shift!

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    For DreX:

    Click here to enlarge
    2009 335i: PROcede V4 with BMS DCI (still not sure how they get along!)

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    Click here to enlarge Originally Posted by alextremo Click here to enlarge
    Wow - is that really 9500 RPM? Looks like you got away with a free money shift!
    The log captured 9392 rpm!!! Yes, I am very fortunate. I almost crapped myself when I heard the engine rev up like that.
    2009 335i: PROcede V4 with BMS DCI (still not sure how they get along!)

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    Click here to enlarge Originally Posted by Doug007 Click here to enlarge
    I have to go for lunch now. That cookie looks good. LOL

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    Yikes, glad you got away with your mistake without any serious issues, including your personal safety.
    2015 F82 M4 - DCT - YMB
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  10. #10
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    See, 9500rpm on the N54 IS possible! Click here to enlarge

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    Click here to enlarge Originally Posted by Irishace Click here to enlarge
    Yikes, glad you got away with your mistake without any serious issues, including your personal safety.
    Thanks. I was definitely shifting fast and put a bit too much pull into the 3-4 shift. I'm a little surprised it was that easy to get into 2nd, usually there is some resistance in the tranny/synchros to that sort of thing. The car never broke traction or anything. Just got a 1/2 engine limp (no boost) mode. I could see this on the procede fuel boost gauge.

    I cleared the codes and all seems to be well. I got very lucky!
    2009 335i: PROcede V4 with BMS DCI (still not sure how they get along!)

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    Click here to enlargeClick here to enlargeClick here to enlarge
    [SIGPIC][/SIGPIC]

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    wowzers
    JB4LIFE

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    What codes did you get?

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    holllyyyy $#@!...
    Some people live long, meaningful lives.

    Other people eat shit and die.

    I'm not racist, I hate everybody equally; especially fat people.


    Click here to enlarge

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    Even if you didn't break a spring you might have weakened them... could be a ticking time bomb.

    I'm still amazed you hit that rpm.
    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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    3100 12544 boost-pressure control, deactivation
    2F6C 12140 Exhaust fumeflap, input signal (expected since I disconnected the flapper connection)

    Boost control was most certainly deactivated. The PROcede gauge showed no boost as I drove home. The car is running absolutely normal now.
    2009 335i: PROcede V4 with BMS DCI (still not sure how they get along!)

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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Even if you didn't break a spring you might have weakened them... could be a ticking time bomb.

    I'm still amazed you hit that rpm.
    I'm amazed too.

    I'm not sure why that would damage the valve springs. I mean the valve lift is the same, just lots faster. The main thing I was worried about was the reciprocating parts (pistons, rods) and rotating parts (timing chain) from the heavy acceleration loads.

    The main concern with the valves would be that they would float and hit the pistons. I'm pretty sure that didn't happen given how strong the car is running. I got lucky. I hope nothing happens long term!
    2009 335i: PROcede V4 with BMS DCI (still not sure how they get along!)

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    The bad news is the DME records maximum RPM in a space we can't erase. Same for maximum boost (if you're flash tuned). So be careful with any future serious warranty claim.

  20. #20
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    Click here to enlarge Originally Posted by Doug007 Click here to enlarge
    I'm not sure why that would damage the valve springs. I mean the valve lift is the same, just lots faster. The main thing I was worried about was the reciprocating parts (pistons, rods) and rotating parts (timing chain) from the heavy acceleration loads.
    Well, you can weaken the valve springs by pushing them out of range which you did. I wouldn't be as worried about the pistons or rods, if something happened with those, you would already know. The spring can be weakened though by exceeding the limiter as well as hitting it.

    I think you got lucky too and hope nothing happens as well. If it does, well, you know what did it Click here to enlarge
    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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    Click here to enlarge Originally Posted by Terry@BMS Click here to enlarge
    The bad news is the DME records maximum RPM in a space we can't erase. Same for maximum boost (if you're flash tuned). So be careful with any future serious warranty claim.
    I think I knew about the maximum rpm. Yeah, that will be a tough one if anything does happen. fingers crossed!

    I didn't know it records maximum boost! That seems like a huge liability for the guys running flash tunes! If you can't erase it you're going to get your warranty claims denied all the time even if you reflash to stock.
    2009 335i: PROcede V4 with BMS DCI (still not sure how they get along!)

  22. #22
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    Click here to enlarge Originally Posted by Doug007 Click here to enlarge
    I think I knew about the maximum rpm. Yeah, that will be a tough one if anything does happen. fingers crossed!

    I didn't know it records maximum boost! That seems like a huge liability for the guys running flash tunes! If you can't erase it you're going to get your warranty claims denied all the time even if you reflash to stock.
    I think people who flash generally accept they're not going to be able to make any serious warranty claims. And rightfully so. When you take those steps it's really on you to cover things should they go bad. But on the plus side that information is not easy to get and not likely to be pulled for your basic oil change or fuel pump replacement.

  23. #23
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    Click here to enlarge Originally Posted by Terry@BMS Click here to enlarge
    I think people who flash generally accept they're not going to be able to make any serious warranty claims. And rightfully so. When you take those steps it's really on you to cover things should they go bad. But on the plus side that information is not easy to get and not likely to be pulled for your basic oil change or fuel pump replacement.
    Why exactly can't you reset an ecu back to stock?

    Would you set a damn avatar please? Click here to enlarge
    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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