E90Post
 


TNT Racewerks
 
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



Reply
 
Thread Tools Search this Thread
      04-10-2018, 08:58 PM   #1981
GEOS07335i
Lieutenant
164
Rep
513
Posts

Drives: 08 335i
Join Date: Apr 2017
Location: Atlanta

iTrader: (0)

Garage List
How does this look. I had a clean 3rd gear pull and into fourth.

https://datazap.me/u/geosbmw/3rd-pul...26-27-28-29-30
__________________
2008 335i E93, DP's, 7" FMIC, DCI,CP TIAL Q BOV, MHD Stage 2+, Alpina Flash
Appreciate 0
      04-11-2018, 09:57 AM   #1982
Quick335XI
First Lieutenant
Quick335XI's Avatar
116
Rep
335
Posts

Drives: 2010 335xi
Join Date: Dec 2017
Location: Dallas

iTrader: (0)

Maybe they need to rename this thread or remove it now, I’m mostly seeing unanswered requests
Appreciate 0
      04-11-2018, 03:06 PM   #1983
335e92tx
ahat
335e92tx's Avatar
1068
Rep
2,592
Posts

Drives: Was '07-335e92 - Now '13-335IS
Join Date: Mar 2008
Location: Texas

iTrader: (6)

Quote:
Originally Posted by GEOS07335i View Post
How does this look. I had a clean 3rd gear pull and into fourth.

https://datazap.me/u/geosbmw/3rd-pul...26-27-28-29-30

Im still not seeing the right info.

This is what it should look like https://datazap.me/u/bengy335i/log-1...28&zoom=16-110

Do a screen shot of your log variables.
__________________

'13 335IS N54 (1 of 373 LeMans Blue out of 3597 total production e92)- Grey interior (1 of 24 in LMB with any trans- 1 of 14 with DCT)-MODS -MFactory LSD/MHD-BQ custom Tune/ATM-IC/AFE Momentum GT Intake/Konis/Mfront&HeimJoint Rear rods&arms/Brembos.
https://photos.app.goo.gl/Lo6aHZRo7XqtPkhL8
Appreciate 0
      04-11-2018, 03:27 PM   #1984
335e92tx
ahat
335e92tx's Avatar
1068
Rep
2,592
Posts

Drives: Was '07-335e92 - Now '13-335IS
Join Date: Mar 2008
Location: Texas

iTrader: (6)

Quote:
Originally Posted by Quick335XI View Post
Hi can someone tell me their thoughts on this log? I have the xls if needed thanks



Quote:
Originally Posted by Quick335XI View Post
Maybe they need to rename this thread or remove it now, I’m mostly seeing unanswered requests
Well, for one, that looks like a Juicebox log. If it's mhd please upload it to datazap.me.


Your profile, (which doesnt show in your sig), indicates it's custom tuned.

Built, maintained and Tuned by Cedar Performance, Dallas TX
2010 335XI AWD 6mt- Pure Stage 2 High Flows, 50/50 BMS Methanol, V1's, VRSF 7.5" cooler and downpipes


If that's the case your tune developer is the best place to start. Do you have any specific issues?
__________________

'13 335IS N54 (1 of 373 LeMans Blue out of 3597 total production e92)- Grey interior (1 of 24 in LMB with any trans- 1 of 14 with DCT)-MODS -MFactory LSD/MHD-BQ custom Tune/ATM-IC/AFE Momentum GT Intake/Konis/Mfront&HeimJoint Rear rods&arms/Brembos.
https://photos.app.goo.gl/Lo6aHZRo7XqtPkhL8
Appreciate 0
      04-11-2018, 06:04 PM   #1985
GEOS07335i
Lieutenant
164
Rep
513
Posts

Drives: 08 335i
Join Date: Apr 2017
Location: Atlanta

iTrader: (0)

Garage List
Quote:
Originally Posted by Quick335XI View Post
Maybe they need to rename this thread or remove it now, I’m mostly seeing unanswered requests
Nah 335e92tx has been nothing but helpful. Do these analysis work for MHD or are they just doing this because ithey enjoy helping others. I for really appreciate all of the help.
__________________
2008 335i E93, DP's, 7" FMIC, DCI,CP TIAL Q BOV, MHD Stage 2+, Alpina Flash
Appreciate 0
      04-11-2018, 06:16 PM   #1986
BMWhartgeM3
Private
10
Rep
78
Posts

Drives: E90 335i
Join Date: Feb 2015
Location: Boston Ma

iTrader: (1)

335i FBO

Can anyone see anything a rye with this 3rd and 4th log? I can normally hit 18lbs of boost, but only hit around 15. Also fuel adaptaions are around 145 is that higher then normal?

https://datazap.me/u/bmwhartgem3/335...log=0&data=1-4
Appreciate 0
      04-11-2018, 08:50 PM   #1987
Paanzerfaust
Private First Class
Paanzerfaust's Avatar
39
Rep
108
Posts

Drives: 07 E92 335i
Join Date: Jan 2018
Location: Chicago

iTrader: (0)

So I'm getting a shitload of timing corrections even under casual driving conditions. I apologize for not doing the "normal 3-4 pull" for these logs but I think once you take a look you'll understand why I didn't.

Plugs and coils probably have less than 1200 miles on them, installed by a reputable shop in the area, oil change less than 500 miles ago and I've been having the regular maintenance done by them too. Mods are the AFE dual cone intake, catless downpipes recently installed. I had an aftermarket charge pipe as well but I took it off for unrelated reasons. I was tuned but for these I put it into stage 0 because the timing pulls were scaring me.

Here's a log I did just pulling away from a stoplight - as you can see it pulls timing under conditions it definitely shouldn't be. https://datazap.me/u/panzerfaust/sto...og=0&data=3-22

Here's one where I logged while driving on a regular suburban road... https://datazap.me/u/panzerfaust/dri...og=0&data=3-22

And another that's probably not helpful because it's so short but here it is anyway https://datazap.me/u/panzerfaust/dri...og=0&data=3-22

Any ideas? I noticed on some older logs that my STFTs were off from eachother more than I'd like, so I do have some Techron in the tank right now but maybe my injectors are just going bad? I haven't had them replaced since I bought the car, I don't know if they were replaced previously but in the last 3 years they haven't been. No walnut blast yet either but I wanted to get that done soon anyway. I don't know if "false knock" could be causing something that extreme but the only thing I could see maybe causing false knocks would be the charge pipe because I didn't put the bracket bolt in place? But I highly doubt that.
__________________
07 E92 335i - Sport package, aFe Stage-2 Pro 5R CAI, VRSF Catless Downpipes, H&R Race Springs. MHD Stage 2, xHP Stage 3
Appreciate 0
      04-11-2018, 11:13 PM   #1988
RSL
Captain
650
Rep
779
Posts

Drives: E92 ///M3 (Retired) / 335is
Join Date: Mar 2012
Location: USA

iTrader: (6)

Quote:
Originally Posted by Quick335XI View Post
Maybe they need to rename this thread or remove it now, I’m mostly seeing unanswered requests
Anyone can comment on them, so feel free to jump in. This isn't an official MHD thread, it's users helping users. I, for one, get tired of posting the same responses to the same questions over and over for the same OTS maps.

Quote:
Originally Posted by BMWhartgeM3 View Post
Can anyone see anything a rye with this 3rd and 4th log? I can normally hit 18lbs of boost, but only hit around 15. Also fuel adaptaions are around 145 is that higher then normal?

https://datazap.me/u/bmwhartgem3/335...log=0&data=1-4
You're on an autotune map and your average ignition is high. Boost is actually at or over target in many places. If you want a boost target that stays in one place, try a fixed map instead, but lowering boost target is map 5's way of telling you it's still too high for the fuel you have.

Quote:
Originally Posted by Paanzerfaust View Post
So I'm getting a shitload of timing corrections even under casual driving conditions. I apologize for not doing the "normal 3-4 pull" for these logs but I think once you take a look you'll understand why I didn't.

Plugs and coils probably have less than 1200 miles on them, installed by a reputable shop in the area, oil change less than 500 miles ago and I've been having the regular maintenance done by them too. Mods are the AFE dual cone intake, catless downpipes recently installed. I had an aftermarket charge pipe as well but I took it off for unrelated reasons. I was tuned but for these I put it into stage 0 because the timing pulls were scaring me.

Here's a log I did just pulling away from a stoplight - as you can see it pulls timing under conditions it definitely shouldn't be. https://datazap.me/u/panzerfaust/sto...og=0&data=3-22

Here's one where I logged while driving on a regular suburban road... https://datazap.me/u/panzerfaust/dri...og=0&data=3-22

And another that's probably not helpful because it's so short but here it is anyway https://datazap.me/u/panzerfaust/dri...og=0&data=3-22

Any ideas? I noticed on some older logs that my STFTs were off from eachother more than I'd like, so I do have some Techron in the tank right now but maybe my injectors are just going bad? I haven't had them replaced since I bought the car, I don't know if they were replaced previously but in the last 3 years they haven't been. No walnut blast yet either but I wanted to get that done soon anyway. I don't know if "false knock" could be causing something that extreme but the only thing I could see maybe causing false knocks would be the charge pipe because I didn't put the bracket bolt in place? But I highly doubt that.
Almost no way around that cruise/constant throttle 35-70 load correction crap. I've said more than once there are no corrections worse than stock bin at cruise and that's exactly what I was talking about.

Timing targets are through the roof on the stock rom there and would assume OTS maps don't change much or anything there either. Many of us have tried everything to get rid of them: E85 won't get rid of them, VANOS, AFR, EGR, etc. The only sure-fire method to tone them down is to reduce the timing targets closer to what the engine can actually use so it doesn't have to dump the rest.

It's my belief that BMW simply commanded all kinds of timing in cruise range loads/RPM for economy/emissions and lets the DME pull out what can't be used. For cruise/light throttle/light load, those corrections aren't necessarily indicative of a problem, but can be annoying to look at. If you had a WOT log that looked like that, it would a very different story.

First thing I do when starting any map from scratch is drop the cruise area timing targets. Stock/reduced cruise timing targets:
Attached Images
  
Appreciate 1
bradsm87602.50
      04-12-2018, 12:10 AM   #1989
Paanzerfaust
Private First Class
Paanzerfaust's Avatar
39
Rep
108
Posts

Drives: 07 E92 335i
Join Date: Jan 2018
Location: Chicago

iTrader: (0)

Quote:
Originally Posted by RSL View Post
Almost no way around that cruise/constant throttle 35-70 load correction crap. I've said more than once there are no corrections worse than stock bin at cruise and that's exactly what I was talking about.

Timing targets are through the roof on the stock rom there and would assume OTS maps don't change much or anything there either. Many of us have tried everything to get rid of them: E85 won't get rid of them, VANOS, AFR, EGR, etc. The only sure-fire method to tone them down is to reduce the timing targets closer to what the engine can actually use so it doesn't have to dump the rest.

It's my belief that BMW simply commanded all kinds of timing in cruise range loads/RPM for economy/emissions and lets the DME pull out what can't be used. For cruise/light throttle/light load, those corrections aren't necessarily indicative of a problem, but can be annoying to look at. If you had a WOT log that looked like that, it would a very different story.

First thing I do when starting any map from scratch is drop the cruise area timing targets. Stock/reduced cruise timing targets:
Thanks for the quick response. I'll admit I've never run the monitor module while on a stock tune before this, and when I noticed the timing pulls at first it was while cruising or at steady RPM on the highway (on an OTS tune). My big fear is that it's pulling that all the time right now though - on my short drive on stage 0 to log before parking it would pull timing every time I made the car actually accelerate. I guess I'll flash back to stage 1 to see if it makes a difference on the constant timing pulls compared to stage 0 around town because it's possible I just freaked myself out if what you're saying is true but I also drive this car every day to work so I don't want to ruin the engine with shitloads of knock.
__________________
07 E92 335i - Sport package, aFe Stage-2 Pro 5R CAI, VRSF Catless Downpipes, H&R Race Springs. MHD Stage 2, xHP Stage 3
Appreciate 0
      04-12-2018, 01:45 AM   #1990
RSL
Captain
650
Rep
779
Posts

Drives: E92 ///M3 (Retired) / 335is
Join Date: Mar 2012
Location: USA

iTrader: (6)

Quote:
Originally Posted by Paanzerfaust View Post
Thanks for the quick response. I'll admit I've never run the monitor module while on a stock tune before this, and when I noticed the timing pulls at first it was while cruising or at steady RPM on the highway (on an OTS tune). My big fear is that it's pulling that all the time right now though - on my short drive on stage 0 to log before parking it would pull timing every time I made the car actually accelerate. I guess I'll flash back to stage 1 to see if it makes a difference on the constant timing pulls compared to stage 0 around town because it's possible I just freaked myself out if what you're saying is true but I also drive this car every day to work so I don't want to ruin the engine with shitloads of knock.
No problem. Stage 0 is essentially stock. You can flash back to the actual stock bin and see the same thing and that is as shipped from BMW if it makes you feel less apprehensive. I sure everyone has them, but most don't notice or log there. Low load like that, it's really a non-issue. I very much doubt OTS maps make any changes to part-throttle/light load, so you'll likely see the exact same at cruise on any OTS map you flash.
Appreciate 1
335e92tx1068.00
      04-12-2018, 01:57 PM   #1991
GEOS07335i
Lieutenant
164
Rep
513
Posts

Drives: 08 335i
Join Date: Apr 2017
Location: Atlanta

iTrader: (0)

Garage List
Can someone take a look at my log? https://datazap.me/u/geosbmw/v7-stag...11-12-14-24-28

I do see some timing corrections. Does WGDC and everything else look ok. It does show a bit of diffrence between Boost and target boost. I'm assuming that indicates either wastegate's arent holding boost or a boost or vacuum leak.

Looking for confirmation and will flash with a V8 Stage 2+ and look for differences.
__________________
2008 335i E93, DP's, 7" FMIC, DCI,CP TIAL Q BOV, MHD Stage 2+, Alpina Flash

Last edited by GEOS07335i; 04-12-2018 at 03:19 PM..
Appreciate 0
      04-12-2018, 03:10 PM   #1992
Quick335XI
First Lieutenant
Quick335XI's Avatar
116
Rep
335
Posts

Drives: 2010 335xi
Join Date: Dec 2017
Location: Dallas

iTrader: (0)

Quote:
Originally Posted by 335e92tx View Post
Well, for one, that looks like a Juicebox log. If it's mhd please upload it to datazap.me.


Your profile, (which doesnt show in your sig), indicates it's custom tuned.

Built, maintained and Tuned by Cedar Performance, Dallas TX
2010 335XI AWD 6mt- Pure Stage 2 High Flows, 50/50 BMS Methanol, V1's, VRSF 7.5" cooler and downpipes


If that's the case your tune developer is the best place to start. Do you have any specific issues?
Nope no issues just curious what people thought of the graph is all. Nothing in this thread says you have to be having issues to post. I just see a lot of unanswered requests
Appreciate 0
      04-12-2018, 05:19 PM   #1993
Paanzerfaust
Private First Class
Paanzerfaust's Avatar
39
Rep
108
Posts

Drives: 07 E92 335i
Join Date: Jan 2018
Location: Chicago

iTrader: (0)

Quote:
Originally Posted by RSL View Post
No problem. Stage 0 is essentially stock. You can flash back to the actual stock bin and see the same thing and that is as shipped from BMW if it makes you feel less apprehensive. I sure everyone has them, but most don't notice or log there. Low load like that, it's really a non-issue. I very much doubt OTS maps make any changes to part-throttle/light load, so you'll likely see the exact same at cruise on any OTS map you flash.
Yeah AFAIK stage 0 is the same settings as stock, just in the MHD format. I did flash back to stage 2 for my commute to work and reset some adaptations that I probably should've anyway now that I have a different intake + dps, and it does seem to pull timing less frequently than on stage 0. The thing worrying me is I hardly ever saw timing pulls while driving casually before, and when it did pull it'd just be one or two cylinders and not any more than 3.3 degrees whereas now it's much more frequent and on more cylinders. I emailed my shop to see if he could think of anything too, but I'm hoping once I get through this tank of techron mixed in that it'll settle down since it seems to have improved some on my commute today. Hopefully it's nothing to worry about like you're saying, I'll give it some more time to adapt and get some more techron through the injectors and then do a quick proper log. Like I said its just worrying seeing all that being pulled now on light load acceleration when I didn't see it before
Appreciate 0
      04-13-2018, 12:13 AM   #1994
GEOS07335i
Lieutenant
164
Rep
513
Posts

Drives: 08 335i
Join Date: Apr 2017
Location: Atlanta

iTrader: (0)

Garage List
Quote:
Originally Posted by GEOS07335i View Post
Can someone take a look at my log? https://datazap.me/u/geosbmw/v7-stag...11-12-14-24-28

I do see some timing corrections. Does WGDC and everything else look ok. It does show a bit of diffrence between Boost and target boost. I'm assuming that indicates either wastegate's arent holding boost or a boost or vacuum leak.

Looking for confirmation and will flash with a V8 Stage 2+ and look for differences.
Bump
__________________
2008 335i E93, DP's, 7" FMIC, DCI,CP TIAL Q BOV, MHD Stage 2+, Alpina Flash
Appreciate 0
      04-13-2018, 06:44 AM   #1995
Meatos
Private First Class
61
Rep
146
Posts

Drives: 335i n54 -07
Join Date: May 2017
Location: Sweden

iTrader: (0)

Quote:
Originally Posted by GEOS07335i View Post
Bump
Have you added some e85? STFT looks pretty high but not a big problem,
Timing corrections seem to occur only when shifting so i wouldnt be worried, pretty big corrections and takes away some power though. The boost problem you will find an answer to sooner or later, nothing dangerous just disturbing,
If the turbos has gone many miles i would start saving for new turbos and stop to pay alot of money on upgrades and dynotesting, i recently changed mine myself as they gave up at 80k and its a pretty big job and cost alot to let a shop do in labor only.
Good luck

Last edited by Meatos; 04-13-2018 at 06:50 AM..
Appreciate 0
      04-13-2018, 08:14 AM   #1996
GEOS07335i
Lieutenant
164
Rep
513
Posts

Drives: 08 335i
Join Date: Apr 2017
Location: Atlanta

iTrader: (0)

Garage List
Quote:
Originally Posted by Meatos View Post
Have you added some e85? STFT looks pretty high but not a big problem,
Timing corrections seem to occur only when shifting so i wouldnt be worried, pretty big corrections and takes away some power though. The boost problem you will find an answer to sooner or later, nothing dangerous just disturbing,
If the turbos has gone many miles i would start saving for new turbos and stop to pay alot of money on upgrades and dynotesting, i recently changed mine myself as they gave up at 80k and its a pretty big job and cost alot to let a shop do in labor only.
Good luck
I had a full tank and was only able to get in 1.7g of E85. How many gallons of E should I run on stock LPFP? Should I add a another gallon of E and see if it helps? Also what could be the reason I'm seeing corrections is it do to some faulty part? Or just bad gas. I try and use Exxon 93 should I switch to Shell or Mobile?

I have a feeling the turbo's are on the way out. Funny you mentioned DYNO. We have a E9x group in ATL and there are about 20 E9x's signed up for the pull. It's $40 for 3 pulls. Any idea what the labor cost was to install a new set of turbos's? I just did a VCG yesterday and It was a nightmare of a job. I'm going to load the V8 map and report back. Thanks for the response.
__________________
2008 335i E93, DP's, 7" FMIC, DCI,CP TIAL Q BOV, MHD Stage 2+, Alpina Flash
Appreciate 0
      04-13-2018, 08:38 AM   #1997
335e92tx
ahat
335e92tx's Avatar
1068
Rep
2,592
Posts

Drives: Was '07-335e92 - Now '13-335IS
Join Date: Mar 2008
Location: Texas

iTrader: (6)

Quote:
Originally Posted by Quick335XI View Post
Nope no issues just curious what people thought of the graph is all. Nothing in this thread says you have to be having issues to post. I just see a lot of unanswered requests
Well, then throw us a bone and put it in the common format and someone will have a look.
And if its JB (as opposed to MHD), n54tech.com is the best forum.
__________________

'13 335IS N54 (1 of 373 LeMans Blue out of 3597 total production e92)- Grey interior (1 of 24 in LMB with any trans- 1 of 14 with DCT)-MODS -MFactory LSD/MHD-BQ custom Tune/ATM-IC/AFE Momentum GT Intake/Konis/Mfront&HeimJoint Rear rods&arms/Brembos.
https://photos.app.goo.gl/Lo6aHZRo7XqtPkhL8
Appreciate 0
      04-13-2018, 09:00 AM   #1998
Meatos
Private First Class
61
Rep
146
Posts

Drives: 335i n54 -07
Join Date: May 2017
Location: Sweden

iTrader: (0)

Quote:
Originally Posted by GEOS07335i View Post
I had a full tank and was only able to get in 1.7g of E85. How many gallons of E should I run on stock LPFP? Should I add a another gallon of E and see if it helps? Also what could be the reason I'm seeing corrections is it do to some faulty part? Or just bad gas. I try and use Exxon 93 should I switch to Shell or Mobile?

I have a feeling the turbo's are on the way out. Funny you mentioned DYNO. We have a E9x group in ATL and there are about 20 E9x's signed up for the pull. It's $40 for 3 pulls. Any idea what the labor cost was to install a new set of turbos's? I just did a VCG yesterday and It was a nightmare of a job. I'm going to load the V8 map and report back. Thanks for the response.
Doesnt seem like fuel is causing the corrections so i wouldnt experiment more with e85, just messes up dme calculations as seen with stft. The corrections only occur when shifting so my guess is that the knocksensors feel som vibrations from the shifts and read a false knock. But thats a guess, some cylinders are clean from corrections , that wouldnt be the case if there was bad fuel/low octane.
Other things could be causing is the standard things, coils, plugs, dirty valves (walnut blast) etc
If your low pressure pump drops below 50psi constantly during pulls then you have to much e85. Around 30% use to be max with healthy pumps.

Labor at my shop was around 1000 dollar and i got a good price. 8 hours estimate time, but if you are going to see alot of other n54 people then I would ask around if someone could help you with a change, I bet many of them have already changed atleast 1pair of them already. You can pay someone to help you and save money and learn a bunch of things while doing it

Last edited by Meatos; 04-13-2018 at 09:09 AM..
Appreciate 0
      04-13-2018, 09:20 AM   #1999
Quick335XI
First Lieutenant
Quick335XI's Avatar
116
Rep
335
Posts

Drives: 2010 335xi
Join Date: Dec 2017
Location: Dallas

iTrader: (0)

Quote:
Originally Posted by 335e92tx View Post
Well, then throw us a bone and put it in the common format and someone will have a look.
And if its JB (as opposed to MHD), n54tech.com is the best forum.
It's both

I'll check out datazap

Thanjs
Appreciate 0
      04-13-2018, 02:40 PM   #2000
GEOS07335i
Lieutenant
164
Rep
513
Posts

Drives: 08 335i
Join Date: Apr 2017
Location: Atlanta

iTrader: (0)

Garage List
Quote:
Originally Posted by Meatos View Post
Doesnt seem like fuel is causing the corrections so i wouldnt experiment more with e85, just messes up dme calculations as seen with stft. The corrections only occur when shifting so my guess is that the knocksensors feel som vibrations from the shifts and read a false knock. But thats a guess, some cylinders are clean from corrections , that wouldnt be the case if there was bad fuel/low octane.
Other things could be causing is the standard things, coils, plugs, dirty valves (walnut blast) etc
If your low pressure pump drops below 50psi constantly during pulls then you have to much e85. Around 30% use to be max with healthy pumps.

Labor at my shop was around 1000 dollar and i got a good price. 8 hours estimate time, but if you are going to see alot of other n54 people then I would ask around if someone could help you with a change, I bet many of them have already changed atleast 1pair of them already. You can pay someone to help you and save money and learn a bunch of things while doing it
Well I have new NGK 95770 plugs gapped at .020 as of last weekend. My coils NEW Bosch are 200 miles old and got blasted about the same time. No need for an indy I wrench in the garage. Just finishing up my VCG replacement
__________________
2008 335i E93, DP's, 7" FMIC, DCI,CP TIAL Q BOV, MHD Stage 2+, Alpina Flash
Appreciate 0
      04-13-2018, 02:49 PM   #2001
Meatos
Private First Class
61
Rep
146
Posts

Drives: 335i n54 -07
Join Date: May 2017
Location: Sweden

iTrader: (0)

Quote:
Originally Posted by GEOS07335i View Post
Well I have new NGK 95770 plugs gapped at .020 as of last weekend. My coils NEW Bosch are 200 miles old and got blasted about the same time. No need for an indy I wrench in the garage. Just finishing up my VCG replacement
Good then you only have the turbos left to change
Appreciate 1
Sgop335667.50
      04-17-2018, 07:30 AM   #2002
p.asik
Registered
Czech_Republic
0
Rep
1
Posts

Drives: BMW 335i e92
Join Date: Apr 2018
Location: Czech Republic

iTrader: (0)

Gentlemen, I am fighting with rough idle (not tidy with occasional hiccups) and occasional bogs during coasting. I would very much appreciate opinion on my logs as I am a beginner.
Car is completely stock 335i (N54, 2009) with 90k miles. Replaced HPFP (20k miles), index12 injectors (60k miles), turbos (80k mikes) and very recently new spark plugs, coils, vacuum lines, PCV valve, valve cover gasket and post-cat O2 sensors. After the recent maintenance turbos got very loud under even slight acceleration which sounds like it blows off a lot of air (but having stock diverter valves). The idling problems are however since I got my car at around 70k miles.

Idle with lot of hiccups after startup (noticed that the torque value might correspond the hiccup pattern):
https://datazap.me/u/otakarkrus/idle...22&zoom=27-170

Rough idle with different values logged: https://datazap.me/u/otakarkrus/roug...?log=0&data=12

Coasting with constant gas: https://datazap.me/u/otakarkrus/coas...0&data=9-10-12

3rd gear pull (forgot to turn DSC off): https://datazap.me/u/otakarkrus/pull...?log=0&data=16
Another pull (different values logged, DSC off): https://datazap.me/u/otakarkrus/acce...?log=0&data=12

I also noticed, that the AFR oscillates between 14.5-15.5 and bank 1 seems to be right opposite to bank 2 values.

I am not sure what of these patterns are normal and if there is any anomaly
Thanks a lot!

Last edited by p.asik; 04-17-2018 at 11:37 AM..
Appreciate 0
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 11:14 PM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST