[drunkentrader]

Or the old fashion way: “please take a look at my logs” - I have two. One is mhd 2+ 91 oct. and the other is e25.

IC, DP, inlets and outlets. Have an audible whooshing leak I believe could be coming from an outlet, and some tiny leaks at the IC passenger side connect and stock diverters(at the base connection not diaphragm leak) - also front turbo rattle has gotten worse, even after having the wastegate arm shimmed to tighten things up. Trying to identify if I have a boost leak(which seems the most obvious) - or if my 65k mile front turbo is weak. Rear turbo is new from BMW warranty replacement 10k miles ago.


91 OCT 2+

https://datazap.me/u/drunkentrader/m...23-24-25-30-31


E25:

https://datazap.me/u/drunkentrader/m...-31&mark=27-20

[rediahad]

Maybe someone can tell me if all is well on my chart? I have zero idea how to read a chart. E93, Stage 2+ tune, xhp stage 3 tranny flash, dinan CAI, VRSF 5inch IC, VRSF DP, HKS bov VRSF Chargepipe.

https://datazap.me/u/rediahad/log-15...og=0&data=3-23

[Meatos]

Originally Posted by drunkentrader

Or the old fashion way: “please take a look at my logs” - I have two. One is mhd 2+ 91 oct. and the other is e25.

IC, DP, inlets and outlets. Have an audible whooshing leak I believe could be coming from an outlet, and some tiny leaks at the IC passenger side connect and stock diverters(at the base connection not diaphragm leak) - also front turbo rattle has gotten worse, even after having the wastegate arm shimmed to tighten things up. Trying to identify if I have a boost leak(which seems the most obvious) - or if my 65k mile front turbo is weak. Rear turbo is new from BMW warranty replacement 10k miles ago.


91 OCT 2+

https://datazap.me/u/drunkentrader/m...23-24-25-30-31


E25:

https://datazap.me/u/drunkentrader/m...-31&mark=27-20

Looks fine boost wise, i would keep an eye on the lamba values, maybe the sensors need to be replaced soon. Lambda values differs between bank 1 and 2

[e92jonathan]

Hello everyone, I ran a log recently and I've noticed that there are some issues in the log. There seems to be a fair amount of timing corrections in the logs and I've never seen that type of issue in my previous logs. Also I'm under boosting about 2 psi from target and maybe somehow that may be related to the timing corrections.
Recent maintenance: changed oil about 500 miles ago. Replaced all coil packs and one spark plug specifically on cylinder 2 due to misfires.
Mods: vrsf downpipes and 7in intercooler, ssr intakes, synapse cp and bov, 335is/smfw clutch and flywheel, fuel-it stage 2 bucketless lpfp, mhd stage 2 e60 ots
Also no codes were thrown during these logs.
I'm not very good yet at diagnosing things but maybe someone could point me in the right direction? Thanks for the help!

https://datazap.me/u/jonathane92/e60...-race-m4?log=0
There's 3 logs in there. I believe the 3rd to 5th gear pull I raced my friends m4 and I got pretty bad shift bog between 3rd and 4th.

[Blown95ImpalaSS]

Does this look like a boost leak? Car feels a little slow but WG duty is not anywhere near maxed and this is an OTS map for 91acn

https://datazap.me/u/blown95impalass...=1&data=3-5-23

edit: also just noticed I don't full hit boost target until almost 5k

[Sgop335]

Originally Posted by Blown95ImpalaSS

Does this look like a boost leak? Car feels a little slow but WG duty is not anywhere near maxed and this is an OTS map for 91acn

https://datazap.me/u/blown95impalass...=1&data=3-5-23

edit: also just noticed I don't full hit boost target until almost 5k

There may be a small leak - tmap o-ring, TB o-ring, Diverter valve o-rings etc.... you did meet target at 3180rpm, all the way at 5k would have resulted in a 30ff.

[Blown95ImpalaSS]

Originally Posted by Sgop335

There may be a small leak - tmap o-ring, TB o-ring, Diverter valve o-rings etc.... you did meet target at 3180rpm, all the way at 5k would have resulted in a 30ff.

Thanks for the reply. I'm gonna do boost control solenoids since they are original and hunt for small leaks this weekend. Given the turbos are OEM w/133k this may be all they've got

[Best_Of_The_Midwest]

Hi all! This is my first post here.

I bought this car over a month ago and also bought MHD flasher and I've been running stage 1+ for about 3 weeks. It pulled really hard at first but I began to notice it wasn't pulling as hard. At first I thought it was just me getting used to the extra horsepower, but then I got an 30ff code (and I've been getting it every time I go WOT through 3rd gear since). Never quite hit target and boost drops off like a rock.

I've since downgraded the tune back to Map 0 (stock) and I am still getting the code. I'm wondering what my logs tell you guys. Turbos gone bad? Boost pressure solenoid? I've never had any wastegate rattle.

I've checked the charge pipe and it is perfectly in-tact. Looking into other possible sources. Thanks you so much for looking!

https://datazap.me/u/dillonl/log-153...=0&data=3-5-21

[blake11544]

Someone take a look at my log and tell me what’s wrong with it please. I’m getting so serious issues.
https://datazap.me/u/blake11545/some...og=0&data=3-24

[dannybeckett]

Hey guys,

-8.7 degrees of timing correction on cylinder 4... any idea what could cause this?

https://datazap.me/u/dannybeckett/v7...data=3-8-11-24

[dannybeckett]

Originally Posted by dannybeckett

Hey guys,

-8.7 degrees of timing correction on cylinder 4... any idea what could cause this?

https://datazap.me/u/dannybeckett/v7...data=3-8-11-24

well apparently I've fixed this problem by changing all the spark plugs!

https://datazap.me/u/dannybeckett/v8...-12-13-24&hg=1

What a difference....

[CarAbuser]

Originally Posted by blake11544

Someone take a look at my log and tell me what’s wrong with it please. I’m getting so serious issues.
https://datazap.me/u/blake11545/some...og=0&data=3-24

Lots of timing corrections and an odd AFR reading on overrun.

Are your injectors original?

[ManiacGT]

Originally Posted by dannybeckett

well apparently I've fixed this problem by changing all the spark plugs!

https://datazap.me/u/dannybeckett/v8...-12-13-24&hg=1

What a difference....

That is interesting... Huge timing corrections due to faulty plugs?

[blake11544]

Originally Posted by CarAbuser

Lots of timing corrections and an odd AFR reading on overrun.

Are your injectors original?

Yes they are I was thinking that was my problem just wanted to make sure before I go out and do them.

[blake11544]

Originally Posted by CarAbuser

Lots of timing corrections and an odd AFR reading on overrun.

Are your injectors original?

My afr is what tripping me out why is it so high?

[Bimmer_Engineer]

Originally Posted by drunkentrader

This is a great thread, but it will never answer a majority of the questions asked, and could greatly benefit from information providing a better baseline understanding - not talking about what each widget of data means and how it correlates with hardware or software inadequacies — but starting with something simpler - a visual benchmark of what logs “should” look like.

This is an outstanding suggestion...if there was an example of what a log should look like for each stage of tune it would be crazy helpful...

[K_Bro88]

Hey everyone. New member. Was recommended this forum by the 335i mods page on FB.

Anywho. I'm getting bad timing corrections after flat foot shifting, and my hpfp is dipping under 1000psi. Hopefully I can get some insight on if my log looks okay. I know very very basic stuff about this.

Main mods are: VRSF 7in HD intercooler, catless downpipes, relocated inlets, PSP outlets, MHD E50 v8 beta, stage 2 lpfp, Ngk 1 step colder plugs and the wotbox.

Thank you in advance!

https://datazap.me/u/kbro88/log-1530...og=0&data=3-21

[CarAbuser]

Originally Posted by blake11544

My afr is what tripping me out why is it so high?

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.

[Meatos]

Originally Posted by K_Bro88

Hey everyone. New member. Was recommended this forum by the 335i mods page on FB.

Anywho. I'm getting bad timing corrections after flat foot shifting, and my hpfp is dipping under 1000psi. Hopefully I can get some insight on if my log looks okay. I know very very basic stuff about this.

Main mods are: VRSF 7in HD intercooler, catless downpipes, relocated inlets, PSP outlets, MHD E50 v8 beta, stage 2 lpfp, Ngk 1 step colder plugs and the wotbox.

Thank you in advance!

https://datazap.me/u/kbro88/log-1530...og=0&data=3-21

Your fuel pressure is way to low. Looks like you need a new hpfp, dont do any more WOT or you will damage the engine

[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.

That’s what I figured I’ve got leaky injector. Thank you

[K_Bro88]

Originally Posted by Meatos

Your fuel pressure is way to low. Looks like you need a new hpfp, dont do any more WOT or you will damage the engine

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

[K_Bro88]

https://datazap.me/u/kbro88/good-fue...&data=2-22

https://datazap.me/u/kbro88/fuel-drop

couple more logs. should I pick up a new hpfp? the fuel drop doesn't happen every time