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      11-30-2019, 07:32 AM   #8185
Acheron83
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Still trying to help a friend out with fault finding on his car. Feels pretty damn slow

3 logs - https://datazap.me/u/rawr/log-157512...og=0&data=3-11
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      11-30-2019, 08:40 AM   #8186
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Quote:
Originally Posted by Acheron83 View Post
Still trying to help a friend out with fault finding on his car. Feels pretty damn slow

3 logs - https://datazap.me/u/rawr/log-157512...og=0&data=3-11
So there is a few things going on that I picked up. First off the car is running with what I would consider as a substantial ammount of cylinder corrections. Since it is present on all the cylinders it is either due to ignitions parts being worned out (plugs or coils) or the fueling used. What is the fuel used?

Other than that what intercooler is he running? Your friend's car starts the pull at 37 Celcius and finished it at 77 Celcius which is insanely wrong. Usually you don't want your IATs over 50 Celcius because after that the density of oxygen in the air at that temperature starts to get low which means a lot less power produced.
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      11-30-2019, 09:07 AM   #8187
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Quote:
Originally Posted by TheGoodTheBadTheUgly View Post
So there is a few things going on that I picked up. First off the car is running with what I would consider as a substantial ammount of cylinder corrections. Since it is present on all the cylinders it is either due to ignitions parts being worned out (plugs or coils) or the fueling used. What is the fuel used?

Other than that what intercooler is he running? Your friend's car starts the pull at 37 Celcius and finished it at 77 Celcius which is insanely wrong. Usually you don't want your IATs over 50 Celcius because after that the density of oxygen in the air at that temperature starts to get low which means a lot less power produced.
Plugs are brand new N20/Mini plugs as per what was recommended for E-series N55 (stock gap)

Fuel is 95RON and initially he had the 95RON map on the car (which felt terrible as well). I told him to try step down to the ACN91 (93 RON) map as I had also noted the timing corrections and assumed that the less aggressive timing targets might improve the situation.

Car has still has a stock IC (hence running the Stage 2 map rather than 2+). Car has a catless DP and aftermarket cat-back.
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      11-30-2019, 09:23 AM   #8188
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Originally Posted by Acheron83 View Post
Plugs are brand new N20/Mini plugs as per what was recommended for E-series N55 (stock gap)

Fuel is 95RON and initially he had the 95RON map on the car (which felt terrible as well). I told him to try step down to the ACN91 (93 RON) map as I had also noted the timing corrections and assumed that the less aggressive timing targets might improve the situation.

Car has still has a stock IC (hence running the Stage 2 map rather than 2+). Car has a catless DP and aftermarket cat-back.
FYI I'm seeing similar timing corrections and throttle closures. My logs look similar except my IATs don't go much above 60 degrees F.

Even with fresh 93 octane gas, new plugs, 5" FMIC and downpipe, none of the OTS 2+ octane files (93, 91, 91ACN) solved it. Although the timing corrections got progressively less with each less agressive map. I've sent logs to MHD for review.

For the time being I've backed it down to the 1+ file.
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      11-30-2019, 11:13 PM   #8189
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Flashed my X1 35i today with the new unlock. Been waiting for a while to try the MHD. Car has 3.5" DP catless mid pipe, Dinan 135i muffler, ETS 5" fmic, chargepipe, BMS intake and Eldor coils, NGK 97506 and a xHP trans flash.

Flashed the stg 2+ 93 octane map into it. Feels great, only issue I have with it vs my old flash is while cruisng you feel a buck every 3-5 seconds. Any one else felt this?
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      12-01-2019, 01:51 AM   #8190
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Quote:
Originally Posted by MPI_Jack View Post
Flashed my X1 35i today with the new unlock. Been waiting for a while to try the MHD. Car has 3.5" DP catless mid pipe, Dinan 135i muffler, ETS 5" fmic, chargepipe, BMS intake and Eldor coils, NGK 97506 and a xHP trans flash.

Flashed the stg 2+ 93 octane map into it. Feels great, only issue I have with it vs my old flash is while cruisng you feel a buck every 3-5 seconds. Any one else felt this?
What do you mean with "buck",
I would guess you need to wait a little longer for both tunes to adopt.
Else it's not unusual for the car to feel jumpy after flash, this goes away after few days
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      12-01-2019, 09:37 AM   #8191
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Quote:
Originally Posted by Keyless77 View Post
What do you mean with "buck",
I would guess you need to wait a little longer for both tunes to adopt.
Else it's not unusual for the car to feel jumpy after flash, this goes away after few days
Literally like a small hesitation while just cruising. 2500ish rpm in 6th. Never did that before. I drove the car close to 80 miles yesterday(moving houses back and forth). Other then that, it feels great.

Also this morning(cold start is off) it would barely idle and shut off. Going to re flash with cold start back on. Sucks that it does that. Other cars we have tuned on different platforms with cold start options off never did that. Oh well.

Last edited by MPI_Jack; 12-01-2019 at 09:46 AM..
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      12-01-2019, 10:56 AM   #8192
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Quote:
Originally Posted by MPI_Jack View Post
Quote:
Originally Posted by Keyless77 View Post
What do you mean with "buck",
I would guess you need to wait a little longer for both tunes to adopt.
Else it's not unusual for the car to feel jumpy after flash, this goes away after few days
Literally like a small hesitation while just cruising. 2500ish rpm in 6th. Never did that before. I drove the car close to 80 miles yesterday(moving houses back and forth). Other then that, it feels great.

Also this morning(cold start is off) it would barely idle and shut off. Going to re flash with cold start back on. Sucks that it does that. Other cars we have tuned on different platforms with cold start options off never did that. Oh well.
With the cold start option on you want to reset your adaptations for load control, vanos, and throttle per Twisted Tunings recommendations and allow the car to adapt. It took my car about a week or two to adapt.
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      12-03-2019, 11:44 AM   #8193
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Just flashed to 1.7 and my original issue from May is back... off-idle surge. The throttle is slamming open very briefly at low accel pedal position. This is causing bucking/surging from a stop and the transmission is super clunky when its trying to rev match on downshifts. With 1.7 my engine is now squealing just above idle speed. Removed the tune and no squealing.

I had the surging issue with 1.57 and 1.6 with multiple maps. This issue does not exist on 1.56, leading me to believe that it's a tune issue and not hardware.

Here is a log at idle, you can see the throttle position spiking to 1599.9 at very low throttle position (<5%) and the RPM's jumping as well.

https://datazap.me/u/ferocity02/idle...0&data=2-12-15

Twisted Tuning How do we fix this? Others have reported similar issues earlier in this thread. Seems to be most prevalent on 2012-2013 E82's.
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      12-03-2019, 08:57 PM   #8194
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Well... I uninstalled 1.7 and installed 1.56 and attempted to flash Stage 2+ again. It failed ("PAF signature verification not carried out") at the end and now the car wont start. What now?

Do I need to flash back to stock? That would blow because I will have to get my DME unlocked again...
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      12-04-2019, 12:11 AM   #8195
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Quote:
Originally Posted by ferocity02 View Post
Well... I uninstalled 1.7 and installed 1.56 and attempted to flash Stage 2+ again. It failed ("PAF signature verification not carried out") at the end and now the car wont start. What now?

Do I need to flash back to stock? That would blow because I will have to get my DME unlocked again...
Flash back to stock then try to do a full write the update should allow u to flash without bench unlock
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      12-04-2019, 12:18 AM   #8196
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Quote:
Originally Posted by ferocity02 View Post
Well... I uninstalled 1.7 and installed 1.56 and attempted to flash Stage 2+ again. It failed ("PAF signature verification not carried out") at the end and now the car wont start. What now?

Do I need to flash back to stock? That would blow because I will have to get my DME unlocked again...
With the latest update (1.7), you can flash any map (including back to stock) without a bench flash/unlock. However, you can't go back to any older versions without a bench flash because they don't support flashing directly via OBDII.
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      12-04-2019, 10:03 AM   #8197
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Quote:
Originally Posted by lucasmiller2015 View Post
With the latest update (1.7), you can flash any map (including back to stock) without a bench flash/unlock. However, you can't go back to any older versions without a bench flash because they don't support flashing directly via OBDII.
I cant flash maps from 1.7 because of the off idle spike issue that has been present since 1.57 that I mentioned a few posts above. It makes the car virtually undriveable.

I'll need to have the DME unlocked so I can use 1.56 until the issue is fixed. Or I'll need to bite the bullet and get a custom tune, but I'm not convinced that will fix it either.
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      12-04-2019, 03:08 PM   #8198
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Hey all.

New to the platform and learning.

N55 running OTS MHD stage 2+ 91ACN. 2 pulls.

How do things look? Are those timing corrections something to worry about? Car feels awesome.

https://datazap.me/u/kaiv/pulls?log=0&data=3-12-19-22

Thanks!
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      12-06-2019, 05:35 PM   #8199
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Quote:
Originally Posted by MPI_Jack View Post
Feels great, only issue I have with it vs my old flash is while cruisng you feel a buck every 3-5 seconds. Any one else felt this?
I just flashed my 135is last week with the Stage 2+ (ACN) map, and I've noticed the same thing that you are describing.

I've noticed it's most pronounced on the highway at around 2500rpm or less while keeping a constant speed. Seems like every 5 seconds or so for me, and it feels like a hesitation. Almost like driving into a strong headwind gust.

I reset all adaptations before the flash, and then also tried resetting the throttle adaptations after I noticed the sensation. Didn't seem to have an effect.

I have less than 100 miles since flashing, so maybe it will go away as it settles in?

I was gonna wait 'till I purchased the monitor module so I could take a look at the logs and post them if it came to it, but since you mentioned the same issue, I figured I'd chime in.
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      12-07-2019, 10:58 PM   #8200
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Quote:
Originally Posted by ISFK View Post
I just flashed my 135is last week with the Stage 2+ (ACN) map, and I've noticed the same thing that you are describing.

I've noticed it's most pronounced on the highway at around 2500rpm or less while keeping a constant speed. Seems like every 5 seconds or so for me, and it feels like a hesitation. Almost like driving into a strong headwind gust.

I reset all adaptations before the flash, and then also tried resetting the throttle adaptations after I noticed the sensation. Didn't seem to have an effect.

I have less than 100 miles since flashing, so maybe it will go away as it settles in?

I was gonna wait 'till I purchased the monitor module so I could take a look at the logs and post them if it came to it, but since you mentioned the same issue, I figured I'd chime in.
Can't say how long , but will go away with time , most people don't even notice it.
And just driving 100miles doesn't really mean car has fully adapted, the more you keep reseting the longer it takes.
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      12-08-2019, 10:13 AM   #8201
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I have the same issue on my x1 n55. 2014. Flashed 1.7 as my initial flash because of the software unlock.

Throttle from stop feels jerky and random bucking. Not great to drive honestly.
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      12-09-2019, 12:01 PM   #8202
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Just flashed V1.7 Stage 0 map and the off-idle throttle spike is not present. The car feel pretty gutless though.

So far I've only seen the spike on the Stage 2 and 2+ maps. I haven't tested the Stage 1 maps because I don't want to buy the pack just for this one test. I will test it if MHD or Twisted Tuning wants to gift a map to me.

Twisted Tuning, any thoughts here? I can help troubleshoot if you want to email me some test maps.

Users reporting this issue:
-ferocity02, 2013 135is, issue present on v1.57 and up, Stage 2 and 2+ maps. Not present on Stage 0. Continues after resetting adaptations
-Anon, 2013 135i
-Elderado82, 2013 135i, issue went away after resetting all adaptations
-drwillb, late E-series 1-series
-darkrom, 2014 X1
-Jmontans, 2012 135i, stage 2, linear throttle, Continues after resetting adaptations
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      12-11-2019, 06:40 AM   #8203
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Quote:
Originally Posted by ferocity02 View Post
Just flashed V1.7 Stage 0 map and the off-idle throttle spike is not present. The car feel pretty gutless though.

So far I've only seen the spike on the Stage 2 and 2+ maps. I haven't tested the Stage 1 maps because I don't want to buy the pack just for this one test. I will test it if MHD or Twisted Tuning wants to gift a map to me.

Twisted Tuning, any thoughts here? I can help troubleshoot if you want to email me some test maps.

Users reporting this issue:
-ferocity02, 2013 135is, issue present on v1.57 and up, Stage 2 and 2+ maps. Not present on Stage 0. Continues after resetting adaptations
-Anon, 2013 135i
-Elderado82, 2013 135i, issue went away after resetting all adaptations
-drwillb, late E-series 1-series
-darkrom, 2014 X1
-Jmontans, 2012 135i, stage 2, linear throttle, Continues after resetting adaptations
Please email us so we can take a deeper look.
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      12-11-2019, 09:05 AM   #8204
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Hello guys! Im new to the forum. Can someone check my datazap, cz i dont know how to
read it. Do i have any issues or boost leak?
Seems that the boost is not high enough. I have bmw
e92 n55 automatic with mhd stage 1+ muffler delete and alpina b3 soft for gearbox. Otherwise stock..

https://datazap.me/u/bemm335i/bmw-e9...og=0&data=3-12

Thanks in advance!
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      12-11-2019, 01:22 PM   #8205
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Does anyone else have an issue for getting burbles working? I have mine set to medium @ 1s. The car is catless too, so not sure why I'm not hearing anything.
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      12-11-2019, 03:40 PM   #8206
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Originally Posted by MHD Tuning View Post
Please email us so we can take a deeper look.
Done
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