[corona6]

I'm on MHD stage 2 93 octane with Active Autowerke catless DP, BMS DCI, VRSF charge pipe with HKS BOV. Car has been feeling pretty sluggish lately and occasionally surges around 3-4k RPM. Let me know what you think.

https://datazap.me/u/corona6/log-153...-9-10-11-14-22

[blake11544]

Originally Posted by CarAbuser

It's ok during the pull. But while your foot is off the pedal is should be pegged at max range. We are seeing slight dips which suggest fuel is getting through the injectors while they should be closed.

Any suggestions on what I else I should do besides my injectors?

[Meatos]

Originally Posted by K_Bro88

I have no symptoms of my hpfp going bad. the pressure dips that low when I flat foot shift only. it will not do it when I shift normally. my afr doesn't lean out when the pressure gets low either. what is weird is that is stays at a constant 10.28 for a bit before reading other numbers. I'll get another log later today doing a pull without flat foot shifting

I would start to look for sensor failure. Not possible that the afr stays constant for that long. The stft also shows zero. My best guess is that the dme loses contact with one or more sensors and shows default numbers.
No codes??

[CarAbuser]

Originally Posted by blake11544

Any suggestions on what I else I should do besides my injectors?

If you are asking what else could cause those readings then I suppose failing O2 sensors is a possibility but doesn't seem anywhere near as likely as leaking injectors.

[blake11544]

Originally Posted by CarAbuser

If you are asking what else could cause those readings then I suppose failing O2 sensors is a possibility but doesn't seem anywhere near as likely as leaking injectors.

Ok just wanted to make sure thank you

[Josh_G]

Originally Posted by corona6

I'm on MHD stage 2 93 octane with Active Autowerke catless DP, BMS DCI, VRSF charge pipe with HKS BOV. Car has been feeling pretty sluggish lately and occasionally surges around 3-4k RPM. Let me know what you think.

https://datazap.me/u/corona6/log-153...-9-10-11-14-22

IATs are very high and climbe rapidly, what intercooler do you have. im no expert but most logs i look at are around 100f-115f, your are climbing to 150f

[DiskoSleaZe]

What's up everyone??!! Obviously new here, just bought a 07 335i sedan with 70k on here, and she is absolutely in pristine condition. Dropped a DCI in last week and she already had a bmw performance exhaust. That being said, I just got MHD monitoring going and did a couple of logs this morning and did a decent 3rd gear pull log... This log looks like spaghetti Os to me... Trying to upload to datazap now.. Hoping someone can take a look see and let me know if I'm looking good for a stage 1 MHD flash. Thanks in advance!

https://datazap.me/u/mikeskillz/1st-...25&zoom=97-178

[corona6]

Originally Posted by Josh_G

IATs are very high and climbe rapidly, what intercooler do you have. im no expert but most logs i look at are around 100f-115f, your are climbing to 150f

I did notice that. I'm running the stock intercooler in the Florida heat.

[ManiacGT]

Here's a new graph. Sport mode, normal driving (not wot). You can see around 204.38 (time) that although accel pedal slowly increases, throttle closes for a short period, fuelling modes change, load request etc all drops without any corresponding reason I can see. boot mean rises but this is presumably a direct reflection of the throttle closing (it certainly mirrors in the graph).

Why when the pedal is increasing, does load, torque, throttle all drop away for a short period before coming back? Shortly after, the car upshifts.

To me, this is exactly the sensation I'm feeling, a drop off of torque before an upshift. (DCT)

https://datazap.me/u/maniacgt/post-t...-28&zoom=31-53

[Bimmer_Engineer]

Originally Posted by DiskoSleaZe

What's up everyone??!! Obviously new here, just bought a 07 335i sedan with 70k on here, and she is absolutely in pristine condition. Dropped a DCI in last week and she already had a bmw performance exhaust. That being said, I just got MHD monitoring going and did a couple of logs this morning and did a decent 3rd gear pull log... This log looks like spaghetti Os to me... Trying to upload to datazap now.. Hoping someone can take a look see and let me know if I'm looking good for a stage 1 MHD flash. Thanks in advance!

https://datazap.me/u/mikeskillz/1st-...25&zoom=97-178

I don’t really know the specifics about log interpretation but the timing corrections look out of whack to me...

When was the last time your plugs were changed?

[blake11544]

Originally Posted by CarAbuser

If you are asking what else could cause those readings then I suppose failing O2 sensors is a possibility but doesn't seem anywhere near as likely as leaking injectors.

What should I do to fix timing corrections? They are pretty bad

[CarAbuser]

Originally Posted by blake11544

What should I do to fix timing corrections? They are pretty bad

New plugs would make sense if you are going to replace injectors. Leaking injectors would cause fouling on the plugs.

[sänd_mönstä]

MHD's website states Stage 2 maps peak anywhere between 14 and 18 psi. I guess I'm over-boosting? I peaked at 19.3 psi.

Log: https://datazap.me/u/shiero01/log-15...og=0&data=3-11

Thanks in advance guys!

[DiskoSleaZe]

Originally Posted by Bimmer_Engineer

I don’t really know the specifics about log interpretation but the timing corrections look out of whack to me...

When was the last time your plugs were changed?

I just did the plugs and coils less than a month ago...

[Works]

The car in question is my backroad and track toy, a 135i with "stage 1" updated turbos with supporting mods of: FMIC (tube and fin), charge pipe, catless downpipes, stage2 lpfp, new coils and plugs, replaced vanos solenoids, N20 TMAP, RB PCV and to help that torque to make it's way to the rear wheels, a 335is/550i clutch.

I have a pro-tune installed and am just looking to help me to understand my car better.

Datazap.me link here

Any insight that you all can give is highly appreciated!

[Sgop335]

Originally Posted by sänd_mönstä

MHD's website states Stage 2 maps peak anywhere between 14 and 18 psi. I guess I'm over-boosting? I peaked at 19.3 psi.

Log: https://datazap.me/u/shiero01/log-15...og=0&data=3-11

Thanks in advance guys!

The timing corrections are way too much (bad). Improve fuel octane and /or reduce stage. Overboosting is in relation to boost target and boost varies depending on iat. In winter due to low iat your stage 2 will boost low and in summer with high iats, the log for example, boost will be high. You are actually under boosting most of the run and over boosting may be for 0.5sec.
*There is a boost leak*

[Sgop335]

Originally Posted by Works

The car in question is my backroad and track toy, a 135i with "stage 1" updated turbos with supporting mods of: FMIC (tube and fin), charge pipe, catless downpipes, stage2 lpfp, new coils and plugs, replaced vanos solenoids, N20 TMAP, RB PCV and to help that torque to make it's way to the rear wheels, a 335is/550i clutch.

I have a pro-tune installed and am just looking to help me to understand my car better.

Datazap.me link here

Any insight that you all can give is highly appreciated!

Didnt put a fine comb, boosting etc. looks good but timing is way too low. Car feel slow?

[Works]

Originally Posted by Sgop335

Didnt put a fine comb, boosting etc. looks good but timing is way too low. Car feel slow?

Not at all, it is flying. But a good point, comparing to your log I'm way down in timing. In your opinion has it just been set conservatively or is that a symptom? Car is getting flex fuel, so the higher octane rating has potential to take advantage of higher timing settings.

[Sgop335]

Originally Posted by Works

Not at all, it is flying. But a good point, comparing to your log I'm way down in timing. In your opinion has it just been set conservatively or is that a symptom? Car is getting flex fuel, so the higher octane rating has potential to take advantage of higher timing settings.

Could be intentionally set to minimize timing corrections given the high boost etc. Not a symptom since timing correction at least in 3rd is 0, 4th has a bunch. What gas are you running? You should be in for a surprise when the timing is raised with proper octane.
Also noticed your stft2 after gear change is stuck at 0, resulting in rich bank2 (10.28). Not sure why but need to be addressed.
Iats are not impressive.

[Works]

Originally Posted by Sgop335

Could be intentionally set to minimize timing corrections given the high boost etc. Not a symptom since timing correction at least in 3rd is 0, 4th has a bunch. What gas are you running? You should be in for a surprise when the timing is raised with proper octane.
Also noticed your stft2 after gear change is stuck at 0, resulting in rich bank2 (10.28). Not sure why but need to be addressed.
Iats are not impressive.

Thanks for the analysis.

I'm running on Shell VPower 98RON, but as you point out there are quite a few timing corrections in the 4th gear. I might as well try out some other brands as well to see if quality differs before flex gets installed and I can get on to some E50.

Thanks for pointing out the inflated AFR on bank2, I let my tuner know!

IATs, yes. It's been super hot and humid, which doesn't help, but I'm not very happy with my tube and fin Wagner copy that I got from UK. The temperatures are way too high and I'm looking to see if I can ghetto-rig, for now, an intercooler spray just for the hell of it before getting a 7" VSRF or something similar.

[SHEEDI]

hello,

I am getting few things installed this weekend, i already have MDH installed,I am not sure what map I should choose and how much power I will be making.

Things I am getting done.

1. Wagner evO1 5" Performance FMIC,
2. VRSF Charge Pipe
3. BMS DCI air intake

what higher map I can run ? can I run stage 2 or 2+ with above mods?

[kahuna001]

2009 135i 6MT - MHD log.
Question - why is my throttle not at 81% ?
Boost solenoids ?

https://datazap.me/u/kahuna001/log-1...data=3-5-23-27

Thank you in advance