[335e92tx]

Originally Posted by Faredo

Sunoco here only has 91. I haven't looked at the interface, but how would i enable short term trims?

under monitor, it should be a check box. Some seem to include them in defaults some dont.

Originally Posted by Faredo

This was the first run ever on this map.

didnt see that before. Give it more time,, a few more runs, let it cool back down to normal and then a log run.

The DME is prob still adjusting to the new loads and boost. Even with resetting of various controls it will still need a little longer to fine tune things.

[335e92tx]

Originally Posted by ayyy

Will do. Is it required to reflash my stage 2+ map when resetting the adaptions or can I just do that while keeping my current map?

No, not always, it will do it on its own over time,, 100-200miles of a couple good loads thru gears during that period. But when they are way WACK they need the reset. And sometimes its best to still not just go out and hammer it..

the DME likes to see changes over time and include that in future adjustments - kinda same as above..

And its technically LAMBDA controls. There are controls and sensors.. .

the sensor option is used when O2s are replaced.

[Faredo]

Originally Posted by 335e92tx

under monitor, it should be a check box. Some seem to include them in defaults some dont.




didnt see that before. Give it more time,, a few more runs, let it cool back down to normal and then a log run.

The DME is prob still adjusting to the new loads and boost. Even with resetting of various controls it will still need a little longer to fine tune things.

Thanks for the info. ill give it a few days and try another log. You posted this just after i made a post crying about overboost lol.

[335e92tx]

Originally Posted by Faredo

Thanks for the info. ill give it a few days and try another log. You posted this just after i made a post crying about overboost lol.

Hmm so this car has inlets too?
If so,,you're gonna need a custom tune. All ots maps and especially v8s are really tailored now..

Once you get to their limits your kinda sol...tweeking is needed

[tan_rich]

Been a while since my last post here. I've gone to completely stock now, stock tune and stock mods.
LTFT seems to be a lot better and not pegged at 20+. Theyre normal around 7-12% while cruising on the freeway now. Bank 1 is still higher than bank 2.

Post shift bank 1 still seems to go lean or fuel trims arent doing anything after a shift. It seems like my bank 1 afr are slower than my bank 2 afrs, which makes me think in the end it is leaky injectors.
Talked with an SA but told me there isnt much he can do about unless a code pops.

Included a few accompanying logs. 1 pull and 2 cruising.

https://datazap.me/u/tanrich/2232018...og=0&data=3-25

[335e92tx]

Originally Posted by tan_rich

Been a while since my last post here. I've gone to completely stock now, stock tune and stock mods.
LTFT seems to be a lot better and not pegged at 20+. Theyre normal around 7-12% while cruising on the freeway now. Bank 1 is still higher than bank 2.

Post shift bank 1 still seems to go lean or fuel trims arent doing anything after a shift. It seems like my bank 1 afr are slower than my bank 2 afrs, which makes me think in the end it is leaky injectors.
Talked with an SA but told me there isnt much he can do about unless a code pops.

Included a few accompanying logs. 1 pull and 2 cruising.

https://datazap.me/u/tanrich/2232018...og=0&data=3-25

Age of the o2s?

They react slower as they age. Not a major problem. They are somewhat designed (along with the DME) to be age compensated. All it will really do is make it ever so slightly richer for a couple of trim events before it pulls back.

There are two elements at work. The TMAP defaults to lean bias, to sure no fuel is wasted. And since the O2s are more likely to be rich ( as they age), the two generally cancel each other out to ensure what should be close to best driveability Lambda.

[tan_rich]

Originally Posted by 335e92tx

Age of the o2s?

They react slower as they age. Not a major problem. They are somewhat designed (along with the DME) to be age compensated. All it will really do is make it ever so slightly richer for a couple of trim events before it pulls back.

There are two elements at work. The TMAP defaults to lean bias, to sure no fuel is wasted. And since the O2s are more likely to be rich ( as they age), the two generally cancel each other out to ensure what should be close to best driveability Lambda.

Originally Posted by 335e92tx

Age of the o2s?

They react slower as they age. Not a major problem. They are somewhat designed (along with the DME) to be age compensated. All it will really do is make it ever so slightly richer for a couple of trim events before it pulls back.

There are two elements at work. The TMAP defaults to lean bias, to sure no fuel is wasted. And since the O2s are more likely to be rich ( as they age), the two generally cancel each other out to ensure what should be close to best driveability Lambda.

They are more or les brand new, had them replaced last week of December. We were chasing down a different issue where I was running leaning s couple weeks back here

[335e92tx]

And you reset both LAMBDA sensors and controls?

[tan_rich]

Originally Posted by 335e92tx

And you reset both LAMBDA sensors and controls?

Yup, though i believe the MHD reset doesnt do as full of a reset as inpa so i prob should get that downloaded. Ill try another reset. Thankfully i have that extra o2 sensor from trouble shooting before so i will swap that one in and see how it goes.
Swapped the bank 1 o2 sensors earlier and it seems that bank 1 is still slower to jump to 235 afr after lifting off throttle. I pulled the plugs after driving and it seems that cylinder 2 and 3 has the smell of gas.
So i dont think ill will be getting any codes for the dealer to take a look at the issue and cover it under CPO warranty. Might as well just drive for a bit and see how it is

[335e92tx]

Originally Posted by tan_rich

Swapped the bank 1 o2 sensors earlier and it seems that bank 1 is still slower to jump to 235 afr after lifting off throttle. I pulled the plugs after driving and it seems that cylinder 2 and 3 has the smell of gas.
So i dont think ill will be getting any codes for the dealer to take a look at the issue and cover it under CPO warranty. Might as well just drive for a bit and see how it is

mine has done that since like 15K miles (and its a 13IS that Iv only had a yr). But I think one inj is a little fat.

[tan_rich]

Originally Posted by 335e92tx

mine has done that since like 15K miles (and its a 13IS that Iv only had a yr). But I think one inj is a little fat.

Hmm really, shouldn't the afr jump up at the same time though?

[335e92tx]

yes, ideally. There might be some logging delays. I would think there would not always be the same one that is behind. Im still trying to get some more data on that myself.

[FFD670]

Ok so i have a 2012 335is with MHD stage 1 with 66,0000 miles. BMW has replaced the injectors, coils and spark plugs about 1,000 miles ago. I now have a service engine light ( DME code 2c32) It says its a Lambda 2 is the issue. I have deduced then i have a bad Bank 2 Pre Cat o2 sensor that is bad. looking at my log, would you also think the same? any other readings that don't"look" right? Thanks for looking. This forum is invaluable.


https://datazap.me/u/ffd670/log-1519...&data=19-20-25

[Bimmer-azza]

Hey people im new to the thread ive owned my 335i now for 8 months but only just started logging i have no codes but would like to now if i have any issues is the map safe ive have decat dps chargepipe with tial bov and k&n panel filter fmic is on its way but have cold temps here in wales. Do i have any cause for concern is there anything else i should be logging
Thanks any help muchly appriciated

https://datazap.me/u/ktmcriis1990/n54-pulls?log=0&data=3-23

[akg123]

2009 335i fbo + inlets minus intercooler(soon to be upgraded) Stage 2 91oct.

I am having a cutoff issue under WOT. 2nd gear pulls it seems to happen right when peak boost is about to hit and 3rd gear happens right around 4800-5000 rpm. Feels like the car just loses all power similar to limp mode but no codes. Not sure what is causing it, overboost, boostleak? Traction control is turned all the way off so I know it’s not that. Any help is appreciated.

https://datazap.me/u/aarong/stage-2-...?log=0&data=22

[DCook]

I'll give this a bumpp. Did a good top 2nd thru 3rd then low 4th then shut it down. Coming from a 408w holley setup, seems everything is on par in the log, that im use to anyway. Just wanted a second opinion. Was 33* out, iat only rose 2* from 43 to 45, and a/f looks good. Dp,dci,7.5 race fmic,cp+bov, no cats or mufflers. On Stage 2 93oct tune, dct fully off. Stage 2+ misfires and goes limp mode. Spark plugs im gonna give a go and replace and gap down when im free. Any tips or suggestions are appreciated.

https://datazap.me/u/dcook/2am-2-4-pull?log=0&data=22

[muncie21]

Originally Posted by Bimmer-azza

Hey people im new to the thread ive owned my 335i now for 8 months but only just started logging i have no codes but would like to now if i have any issues is the map safe ive have decat dps chargepipe with tial bov and k&n panel filter fmic is on its way but have cold temps here in wales. Do i have any cause for concern is there anything else i should be logging
Thanks any help muchly appriciated

https://datazap.me/u/ktmcriis1990/n5...og=0&data=3-23

Log looks good. No timing corrections, boost is on target and AFRs normal. Drive and enjoy

[MJ80.]

Having some big post shift issues after trying out v5 e40. Took it around the block but noticed massive pause/hesitation after shifting up only at wot. Decided to can it and flashed back to my v8 e50 yet the weird pause remained. I was going to a rolp racing event that night and it pretty much ruined my night tried v7 e60 at the track as i had a e60 mix in tank with no change. I took a log on the way home can anyone see any obvious reason for this random bog post shift?

Keeping in mind this has never presented before until trying v5 e40 now its staying around. Car is dct.

https://datazap.me/u/mj80/log-1520079220

[Chrisavick]

09 335i
7" vrsf intercooler
Dci
Vrsf cp
Running mhd stg1 plus e30 map with about 3.75 gallons of e85 and 93.

https://datazap.me/u/chrisavick/e30-...og=0&data=3-23

Opinions? Seem to be pulling timing across most cylinders, not sure why yet.

[eNaturalcs]

08 335i e93
58000 Miles
Stock Mods
Stage 1 Map.

https://datazap.me/u/entrl/mhd?log=1...10-11-12-13-22
I think this one looks alright?

This one, however, was a longer pull from 2-4th and appears to be lots of timing pulls. The only log I have with these types of timing pulls. This was 3 minutes prior to the above chart

https://datazap.me/u/entrl/mhd?log=0&data=3-22

Thoughts?

Thank you,

[Silent9n54]

Originally Posted by Chrisavick

09 335i
7" vrsf intercooler
Dci
Vrsf cp
Running mhd stg1 plus e30 map with about 3.75 gallons of e85 and 93.

https://datazap.me/u/chrisavick/e30-...og=0&data=3-23

Opinions? Seem to be pulling timing across most cylinders, not sure why yet.

i think that you dont have enough E85 in the tank to run E30 map. You need more than 30% of E in the tank to get to E30. I would also pay attention to your fuel pump as its getting down to 48-50 psi.

[Chrisavick]

I'm conflicted... It seems like if I try adding another gallon or so of e85 to combat the timing issues but if I do that won't it compound my low pressure issues on my lpfp? Also I haven't seen what exactly happens when the lpfp starts hitting the low 50's? Car seems to pull hard even with the timing pulls.