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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > MHD "take a look at my log" thread



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      06-07-2017, 01:40 PM   #903
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Originally Posted by !LEFTCOAST! View Post
Thanks! Did exactly that and did another run without a 30FF. What's your thoughts on this log if you don't mind. I notice a slight dip in the LPFPS to 47.2 around 3100rpm. also, I think tightening the DV's did the trick in regards to the 30FF
http://www.datazap.me/u/ryanbelmares...=0&data=3-5-23
LPFP is just a quick dip, but pressure is definitely trending downward through the run; for that reason, I'd def keep an eye on it...or just swap it for an upgraded unit and add more E, which is definitely the most fun answer.

Either way, will you continue adding ~2 gallons of E to each tank of fuel? If so, I'd also reset adaptations and see what the that does to STFT.
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      06-07-2017, 01:50 PM   #904
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Quote:
Originally Posted by FCobra94
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Originally Posted by !LEFTCOAST! View Post
Thanks! Did exactly that and did another run without a 30FF. What's your thoughts on this log if you don't mind. I notice a slight dip in the LPFPS to 47.2 around 3100rpm. also, I think tightening the DV's did the trick in regards to the 30FF
http://www.datazap.me/u/ryanbelmares...=0&data=3-5-23
LPFP is just a quick dip, but pressure is definitely trending downward through the run; for that reason, I'd def keep an eye on it...or just swap it for an upgraded unit and add more E, which is definitely the most fun answer.

Either way, will you continue adding ~2 gallons of E to each tank of fuel? If so, I'd also reset adaptations and see what the that does to STFT.
gotcha! yeah, I would like to as I keep hearing how bad CA fuel is and how adding some E can only benefit as long as I keep it minimal. should I reset all in MHD or is there a particular one? thanks.
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      06-07-2017, 02:52 PM   #905
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Quote:
Originally Posted by !LEFTCOAST! View Post
gotcha! yeah, I would like to as I keep hearing how bad CA fuel is and how adding some E can only benefit as long as I keep it minimal. should I reset all in MHD or is there a particular one? thanks.
I reset all adaptations and got a throttle closure codeand pulsing idle. Apparently I'm not the first but resetting it again with the ol' pedal method cleared that up and haven't had a problem since! I pretty sure it's only resetting the throttle adaptation that cause the problem and all others were fine.
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      06-07-2017, 02:56 PM   #906
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Originally Posted by FCobra94 View Post
Looking forward to hearing what the experts think, but I'd say everything looks "normal" from a hardware perspective. Every car is different and since this is still a canned tune, the only way to get things looking any better would probably be going the custom route.
Is 1psi under target boost anything to be worried about? It seems to hold boost and wgdc seem to hold pretty steady. Wondering if my log shows I'm a little slow to spool or if I just rolled on the throttle a bit slow. I'll have to disable the kick down button and give it another go to be sure I guess.
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      06-07-2017, 02:57 PM   #907
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Quote:
Originally Posted by JC_714
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Originally Posted by !LEFTCOAST! View Post
gotcha! yeah, I would like to as I keep hearing how bad CA fuel is and how adding some E can only benefit as long as I keep it minimal. should I reset all in MHD or is there a particular one? thanks.
I reset all adaptations and got a throttle closure codeand pulsing idle. Apparently I'm not the first but resetting it again with the ol' pedal method cleared that up and haven't had a problem since! I pretty sure it's only resetting the throttle adaptation that cause the problem and all others were fine.
yeah, when resetting throttle through mhd you have to do it exactly as it states or you'll have that issue. I've done it without problems following the instructions shown above adaptation list
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      06-07-2017, 03:04 PM   #908
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Originally Posted by !LEFTCOAST! View Post
yeah, when resetting throttle through mhd you have to do it exactly as it states or you'll have that issue. I've done it without problems following the instructions shown above adaptation list
Yeah I did it in a hurry before I left for work. Forgot to the day before after fixing a boost leak and changing fill stations. Whoops, better start reading the instructions I guess
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      06-08-2017, 11:56 AM   #909
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Been running stage 1 tune for about 5 months now, no hiccups. Recently started to get a lot of timing corrections, had a super knock thrown once on cylinder 3 and hasn't come back since. Haven't been able to quite nail down what the cause is. Could it just be bad gas? We only have 90 in Alaska and e85 is neigh impossible to get outside of rare occasions race shops have it. Switched back to the "stock" tune and it appears to go away. However still get too many corrections for my liking. If anyone can shed some light of where to start looking I'd greatly appreciate it.

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Stock tune log:

http://datazap.me/u/switchy/log-1495...12-13-14-16-20
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      06-09-2017, 03:37 AM   #910
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Hard to see when logs are set to private or deleted.

Quote:
Originally Posted by JC_714 View Post
Is 1psi under target boost anything to be worried about? It seems to hold boost and wgdc seem to hold pretty steady. Wondering if my log shows I'm a little slow to spool or if I just rolled on the throttle a bit slow. I'll have to disable the kick down button and give it another go to be sure I guess.
Yours is one I can't open, but no, 1psi under target is nothing to worry about. "Boost target" is more a PID target / boost limit than a target. N54 targets load, not boost, but PID needs a target to know where it is relative for control. Boost is almost never on the target line unless specifically tuned for it or nannies will kick in to offset the overage. See !LEFTCOAST!'s log for an example and look at TPS where boost mean exceeds boost target at initial full boost and again near the top of the pull. DME is closing the throttle to stop boost/load over target/request.

Furthermore, the DME doesn't care about "boost" at all, boost mean is what it monitors. Though they usually run close to each other, boost mean can certainly be closer to target than boost at times. "Boost" looks like it's 2.4psi off target here, but boost mean is 0.7psi off. That's what the DME sees and is controlling from.

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      06-09-2017, 06:16 AM   #911
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Since I also seem to slightly overshoot target, I would like your opinion on my log. What do you guys think ? My Wastegates were rattling hard so I masked them (Setting: 10 % far to the left in anti-rattle MHD). Lots of lag but quiet at least.

I was getting 30FF which I got rid of by adjusting rear wastegate arm (really bad worn imho)

http://www.datazap.me/u/ollid/log-14...&data=3-4-5-21

Do spooltimes and the other data look healthy for my 10 year old car?
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Last edited by OlliD; 06-09-2017 at 06:17 AM.. Reason: grammar
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      06-09-2017, 08:25 AM   #912
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Quote:
Originally Posted by RSL View Post
Hard to see when logs are set to private or deleted.

Yours is one I can't open, but no, 1psi under target is nothing to worry about. "Boost target" is more a PID target / boost limit than a target. N54 targets load, not boost, but PID needs a target to know where it is relative for control. Boost is almost never on the target line unless specifically tuned for it or nannies will kick in to offset the overage. See !LEFTCOAST!'s log for an example and look at TPS where boost mean exceeds boost target at initial full boost and again near the top of the pull. DME is closing the throttle to stop boost/load over target/request.

Furthermore, the DME doesn't care about "boost" at all, boost mean is what it monitors. Though they usually run close to each other, boost mean can certainly be closer to target than boost at times. "Boost" looks like it's 2.4psi off target here, but boost mean is 0.7psi off. That's what the DME sees and is controlling from.

Double checked on my datazap account and all my logs are public, not sure what happened but I have had problems opening up other members as well intermittently. I really appreciate your answers, definitely gave me some confidence in my car! Time to order dps and FMIC]
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      06-09-2017, 09:14 AM   #913
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Hey blokes, first log with the mhd e40. Hows it look ?

http://www.datazap.me/u/mj80/log-149...21&solo=3-5-11
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      06-09-2017, 10:49 AM   #914
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Originally Posted by MJ80. View Post
Hey blokes, first log with the mhd e40. Hows it look ?

http://www.datazap.me/u/mj80/log-149...21&solo=3-5-11
Your fuel pumps need some attention. Low pressure on both
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      06-09-2017, 10:50 AM   #915
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Originally Posted by MJ80. View Post
Hey blokes, first log with the mhd e40. Hows it look ?

http://www.datazap.me/u/mj80/log-149...21&solo=3-5-11
Log looks ok, except for fueling.

What LPFP are you running? I imagine it's stock; it looks tired.

Once you upgrade that with an appropriate solution we can reevaluate the HPFP figures, as those pressures don't look good either.
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      06-09-2017, 11:38 AM   #916
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Quote:
Originally Posted by OlliD View Post
Since I also seem to slightly overshoot target, I would like your opinion on my log. What do you guys think ? My Wastegates were rattling hard so I masked them (Setting: 10 % far to the left in anti-rattle MHD). Lots of lag but quiet at least.

I was getting 30FF which I got rid of by adjusting rear wastegate arm (really bad worn imho)

http://www.datazap.me/u/ollid/log-14...&data=3-4-5-21

Do spooltimes and the other data look healthy for my 10 year old car?
I didn't see anything I'd be concerned about at a glance. Closures on overboost are the DME doing it's job and keeping boost in check. When boost mean is tuned close to target, there's less margin and with different hardware and conditions, some will be more prone to overshooting than others.

Quote:
Originally Posted by JC_714 View Post
Double checked on my datazap account and all my logs are public, not sure what happened but I have had problems opening up other members as well intermittently. I really appreciate your answers, definitely gave me some confidence in my car! Time to order dps and FMIC]
It must've been renamed on datazap, but link not updated. I can see logs when I browse directly to your page. Boost and mean are right on each other for the most and both are sometimes a little under and little over. That wavy movement might VANOS, but overall, seems fine.
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      06-09-2017, 05:34 PM   #917
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Quote:
Originally Posted by FCobra94 View Post
Log looks ok, except for fueling.

What LPFP are you running? I imagine it's stock; it looks tired.

Once you upgrade that with an appropriate solution we can reevaluate the HPFP figures, as those pressures don't look good either.
Yeah both stock, im only running it fot a track day/roll racing event. Then it goes back to pump.

Waiting to see what happens witj flex fuel before i upgrade the pump
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      06-10-2017, 02:19 PM   #918
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Hi, guys new to all of this.

Getting ready to flash Stage 1 and thought I'd do some logs to make sure things are ok.

Car history. Bought and ended with a rod knock bone stock last year 83k, Engine replaced by specialist as BMW warranty decided they weren't gonna cover it.

New engine 21k miles block only. rest of the parts moved over. Spark plugs changed less than 1k ago with engine oil flush Original injectors and Coils (thinking I might need to get these) original turbos with wastegate rattle.

Did two runs back to back

http://datazap.me/u/namsu2430/stock-...12-13-14-16-23

http://datazap.me/u/namsu2430/stock-...13-14-16-21-23

Fuel is 99ron ~93/94 Octane.

I'm trying to learn what all the numbers should be, if anyone could link a guide or post of what normal values should be that would be great. If my reading so far is right the the HPFP is getting tired? LPFP is ok?

Thinking of getting a FMIC but I live in Scotland and it's cold almost all year round.

Thanks in advance

Last edited by namsu2430; 06-11-2017 at 05:30 AM..
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      06-11-2017, 12:00 AM   #919
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Question Feedback On My Latest Log Please

http://www.datazap.me/u/2121mando/lo...10-11-12-23-27
Mods/Tune/fuel ; i am FBO OTS e60 from MHD.... runing 100% e85 on this log , it was 67 degrees outside. probably need to pump e60 and not all e85
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      06-11-2017, 12:19 AM   #920
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probably need to pump e60 and not all e85
Your HPFP is on a faster decline than Tiger Woods' sponsor list.
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      06-11-2017, 02:28 AM   #921
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Hello guys.

Can any one help to take time to check my 3 logs to see any injector leaking possibilies ?

Thank you first. this is my 2nd N54 motor, My first is broken ,i thought it was caused by the injector leaking issue. So this time I flash to stage 0/ stock status to test.

http://www.datazap.me/u/yuli8466/201...9&zoom=271-514
http://www.datazap.me/u/yuli8466/201...og=1&data=3-19
http://www.datazap.me/u/yuli8466/201...og=0&data=3-23
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      06-11-2017, 03:36 AM   #922
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Quote:
Originally Posted by FCobra94 View Post
Your HPFP is on a faster decline than Tiger Woods' sponsor list.


No point in running any more E85 than necessary to keep timing clean on a canned E85 tune, especially if you don't have the hardware for it. Fuel trims are within reason, but LPFP isn't remotely close to keeping up.
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      06-11-2017, 05:15 AM   #923
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Does this look ok for E25 map ? does it look safe AFR wise ? seems i am leaking boost too.

http://www.datazap.me/u/mfractal/e90...=0&data=3-4-23
http://www.datazap.me/u/mfractal/e90...-23&zoom=10-74
http://www.datazap.me/u/mfractal/e90...og=0&data=3-23
http://www.datazap.me/u/mfractal/e90...og=1&data=3-23
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      06-11-2017, 10:45 AM   #924
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My first data log. I can somewhat understand what I am looking at but anything stand out to you pros? http://www.datazap.me/u/noguru/first...og=0&data=3-21
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