MHD "take a look at my log" thread

Boosted_Bavarian · 08-12-2020, 03:16 PM

Quote:

Originally Posted by Saif2018

Looks alright except that post shift correction which drops to - 6 on cylinder 4.

I saw that and concerned as well, i asked a local tuner he said its cause i shifted past 6k rpms.. i didnt buy his answer tho. Is there a way to fix it? Is it something i should worry about or?

Sman217 · 08-12-2020, 03:53 PM

Quote:

Originally Posted by Boosted_Bavarian

I saw that and concerned as well, i asked a local tuner he said its cause i shifted past 6k rpms.. i didnt buy his answer tho. Is there a way to fix it? Is it something i should worry about or?

i too have had similar issues with post shift timing drops.

Sgop335 · 08-12-2020, 06:18 PM

Quote:

Originally Posted by Sman217

https://datazap.me/u/sman217/pure600...og=0&data=3-20

had cyl 1 and 3 shut down on me when shifting to 5th gear. according to my tuner the car went into fuel mode 15. car is having serious post shift corections. also, any way to mitigate post shift boost spikes?

Lamda bank 1 seems to be the problem...you are running too lean after gear chagne...dangerously lean...fix it first. Fuel injectors or not sure what

Sman217 · 08-12-2020, 06:47 PM

Quote:

Originally Posted by Sgop335

Lamda bank 1 seems to be the problem...you are running too lean after gear chagne...dangerously lean...fix it first. Fuel injectors or not sure what

STFT’s aren’t trying to adjust for that variance though. They remained relatively unchanged then they resorted to 0 which is what my tuner referred to when he was talking about fuel mode 15. He said car runs open loop thus ignoring 02’s and that’s why he said they were reading that way.

If you look at STFT’s during those ultra lean events you’ll see it’s not trying to adjust.

Sgop335 · 08-12-2020, 07:14 PM

I saw that earlier dont know the fix...
Strangely only bank 1 is super lean tho?

Sman217 · 08-12-2020, 07:45 PM

Quote:

Originally Posted by Sgop335

I saw that earlier dont know the fix...
Strangely only bank 1 is super lean tho?

If cyl 1 and 3 are turning off, I would think that’s why. Idk how these cars work but I’d figure the car kills injectors, but it’s obviously still pushing air rthrough so it’s going to be lean. My question is what’s causing a misfire if it’s not knock? I think only way to have timing corrections is from knock sensors (I may be wrong) but if that’s the case it’s not knocking because there’s no correction. Makes me think it’s gotta be ignition related. I wondered if it’s spark blowout

Saif2018 · 08-13-2020, 12:16 AM

Quote:

Originally Posted by Boosted_Bavarian

I saw that and concerned as well, i asked a local tuner he said its cause i shifted past 6k rpms.. i didnt buy his answer tho. Is there a way to fix it? Is it something i should worry about or?

Post shift timing corrections are common, to be honest I'm not sure how to minimise it. BM3Rrrr might have a better idea.

Are you running XHP trans tune?

vdwlkr · 08-13-2020, 07:36 PM

Quote:

Originally Posted by BM3Rrrr

Throttle closures are due to overboosting

What do you think the overboosting could be a symptom of?

Also, unrelated, I think my MAF sensor needs to be replaced, I’ve had a lot of the typical symptoms of a bad one, and cleaning it helped for about 2 days, but it’s back to normal again.

BM3Rrrr · 08-13-2020, 07:38 PM

Its quite common to have post shift timing corrections, not too sure how you would address this especially if you have no timing corrections during the pull.

BM3Rrrr · 08-13-2020, 07:42 PM

Quote:

Originally Posted by vdwlkr

What do you think the overboosting could be a symptom of?

Also, unrelated, I think my MAF sensor needs to be replaced, I’ve had a lot of the typical symptoms of a bad one, and cleaning it helped for about 2 days, but it’s back to normal again.

Trying switching map versions, i run V7.1
I get crazy throttle closures with V8 but not with V7.1

vdwlkr · 08-13-2020, 08:36 PM

Quote:

Originally Posted by BM3Rrrr

Trying switching map versions, i run V7.1
I get crazy throttle closures with V8 but not with V7.1

Pardon me, I’m a newbie to MHD, how do I choose the version? I’m running v1.60 right now, stage 1 93 octane, until I get my FMIC in then I’ll go to 2+.

BM3Rrrr · 08-13-2020, 08:41 PM

Quote:

Originally Posted by vdwlkr

Pardon me, I’m a newbie to MHD, how do I choose the version? I’m running v1.60 right now, stage 1 93 octane, until I get my FMIC in then I’ll go to 2+.

You have an N55?

vdwlkr · 08-13-2020, 08:57 PM

Quote:

Originally Posted by BM3Rrrr

You have an N55?

Yes I do, N55 with a Wagner catless DP & BMS upper CP.

SuttoN54 · 08-13-2020, 09:47 PM

Any idea why target boost is like this and why load actual drops then goes up ???

https://datazap.me/u/sutton54/load-a...0&data=4-16-20

BM3Rrrr · 08-13-2020, 09:47 PM

Quote:

Originally Posted by vdwlkr

Yes I do, N55 with a Wagner catless DP & BMS upper CP.

Might be best to post the log in the N55 MHD thread

vdwlkr · 08-13-2020, 10:23 PM

Quote:

Originally Posted by BM3Rrrr

Might be best to post the log in the N55 MHD thread

My apologies, didn’t realize I was in the wrong one.

_N54 · 08-14-2020, 01:33 AM

I tried V5.1 E40 Stage 2+ just for fun.... man this version feels like a monster, but the throttle on this map is a bit strange and sensitive even after a throttle reset. This is about 50 miles of total drive time. Next I want to compare it to the V9 Stage 2+ E50

https://datazap.me/u/n54tt/n54-mhd-v...21-22-27-28-29

iqraceworks · 08-14-2020, 06:54 AM

Quote:

Originally Posted by ///S58

I tried V5.1 E40 Stage 2+ just for fun.... man this version feels like a monster, but the throttle on this map is a bit strange and sensitive even after a throttle reset. This is about 50 miles of total drive time. Next I want to compare it to the V9 Stage 2+ E50

https://datazap.me/u/n54tt/n54-mhd-v...21-22-27-28-29

Are you supposed to be resetting the throttle adaptations every time you flash a new map? Just wondering..because I've never done that.

SuttoN54 · 08-14-2020, 06:55 AM

Quote:

Originally Posted by iqraceworks

Are you supposed to be resetting the throttle adaptations every time you flash a new map? Just wondering..because I've never done that.

No

_N54 · 08-14-2020, 09:44 AM

Quote:

Originally Posted by iqraceworks

Are you supposed to be resetting the throttle adaptations every time you flash a new map? Just wondering..because I've never done that.

No, but I never did it since I purchased my car so I thought it might help the car "relearn" my driving style.

RoughKnight · 08-14-2020, 10:39 AM

https://datazap.me/u/roughknight/fir...-9-10-20-28-29

WGDC stays maxed out until 3k ish, wondering whats going on.

SuttoN54 · 08-14-2020, 11:11 AM

Quote:

Originally Posted by RoughKnight

https://datazap.me/u/roughknight/fir...-9-10-20-28-29

WGDC stays maxed out until 3k ish, wondering whats going on.

That's how you build boost

08-12-2020, 07:14 PM	#4097
Sgop335 Colonel 648 Rep 2,011 Posts Drives: 07 335i e92, 08 535i Join Date: Jun 2014 Location: MD iTrader: (1)	I saw that earlier dont know the fix... Strangely only bank 1 is super lean tho? __________________ 335i e92 TPC 19Ts
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08-13-2020, 07:38 PM	#4101
BM3Rrrr Davy Jones, Giant Squid 271 Rep 913 Posts Drives: a Pirate Ship Join Date: Jun 2015 Location: The Isle of Tortuga iTrader: (0)	Its quite common to have post shift timing corrections, not too sure how you would address this especially if you have no timing corrections during the pull. __________________ 2010 e90 335i LCI - xHP - Mishimoto - BMS - CPe - Turbosmart - MHD - Eibach - Koni - VMR - LUX
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08-13-2020, 09:47 PM	#4106
SuttoN54 New Member 0 Rep 5 Posts Drives: Bmw 335i Join Date: Feb 2020 Location: New York iTrader: (0)	Any idea why target boost is like this and why load actual drops then goes up ??? https://datazap.me/u/sutton54/load-a...0&data=4-16-20 Last edited by SuttoN54; 08-13-2020 at 10:04 PM..
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08-14-2020, 01:33 AM	#4109
_N54 Captain 300 Rep 884 Posts Drives: 335d Join Date: Mar 2020 Location: USA iTrader: (0)	I tried V5.1 E40 Stage 2+ just for fun.... man this version feels like a monster, but the throttle on this map is a bit strange and sensitive even after a throttle reset. This is about 50 miles of total drive time. Next I want to compare it to the V9 Stage 2+ E50 https://datazap.me/u/n54tt/n54-mhd-v...21-22-27-28-29 __________________ 2013 335is - sold 2011 335d
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08-14-2020, 10:39 AM	#4113
RoughKnight Private First Class 54 Rep 174 Posts Drives: BMW 335xi N54 Auto Join Date: Apr 2019 Location: Ottawa Ontario iTrader: (0)	https://datazap.me/u/roughknight/fir...-9-10-20-28-29 WGDC stays maxed out until 3k ish, wondering whats going on. __________________ -------------------------------------------------------- ARM CP, DP, 7.5 FMIC, TiAl Q Bov MHD Stage2+/xHP/xDelete Road to 500hp daily on the way (ya right lol) --------------------------------------------------------
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