[Dave92N54]

Originally Posted by Saif2018

That's great, looks like thw car has been looked after.

From what I read upto about 1 psi off target is fine, you might have a very minor boost leak but nothing to worry about.

Now that your FBO, you can flash Stage 2+ if you wanted to,

Stage 1+ is great for daily driving in my opinion.

I take care of if best I can I love this thing to death, can't quite explain why but just something about the N54, but i'm sure most of us here can agree on that haha. I agree stage 1+ is great for DD. Had a blast too and from work, cannot get enough of my raceport! So far it's the fastest car i've ever driven, I'm gonna hold off on stage 2/+ for a bit. Grabbed a new log for you btw.

https://datazap.me/u/e92dave/just-lo...4&mark=105

[Saif2018]

Originally Posted by Dave92N54

I take care of if best I can I love this thing to death, can't quite explain why but just something about the N54, but i'm sure most of us here can agree on that haha. I agree stage 1+ is great for DD. Had a blast too and from work, cannot get enough of my raceport! So far it's the fastest car i've ever driven, I'm gonna hold off on stage 2/+ for a bit. Grabbed a new log for you btw.

https://datazap.me/u/e92dave/just-lo...=3-24&mark=105

Log looks good

Same here was thinking of selling it, couldn't do it, can't find anything better performance for price.

[Js235]

What do you think? This is my log

335i n54 MT
MHD stg2+ v9.0 98ron
dp
wagner evo2 comp
n55 midpipe
VRSF chargepipe
VRSF outlets
VRSF stock location inlets
DCI
stock DV

https://datazap.me/u/jaime235/25-feb...og=0&data=3-24

[Dave92N54]

Originally Posted by Js235

What do you think? This is my log

335i n54 MT
MHD stg2+ v9.0 98ron
dp
wagner evo2 comp
n55 midpipe
VRSF chargepipe
VRSF outlets
VRSF stock location inlets
DCI
stock DV

https://datazap.me/u/jaime235/25-feb...&data=3-24

Other than the boost leak, looks good. Minimal timing corrections and fuel pressures good. Did you blow an IC connection or something? It's odd how your target just drops 3 psi and then goes back up, but afterwards you remain ~3psi under target til redline.

Edit: I see also you're running an OTS map with inlets/outlets. Typically this isn't recommended as it can cause odd behavior. Some people have no issues, others have plenty. You really should look into a custom tune to take advantage of them, even if you have no interest in running higher boost levels than 2+ offers.

[Oliv]

Hey, long time I didn't post !
After a costly 2019 year (turbos, valve cover, Plugs & coils), the good old N54 has been rock-solid in 2020...
As I'm getting used to Stg 1+ on 98oct, and a new gas station with E85 opened just down the road, I flashed an E30 map with the corresponding mix in the tank:

https://datazap.me/u/olivier/firste3...20-21-22-23-24

2-3-4 pull just fresh after the flash, adaptations not resetted
Feels definitely stronger, a bit worried on fuel trims (LPFP seems ok, >50)
Thoughts ?

[Saif2018]

Originally Posted by Oliv

Hey, long time I didn't post !
After a costly 2019 year (turbos, valve cover, Plugs & coils), the good old N54 has been rock-solid in 2020...
As I'm getting used to Stg 1+ on 98oct, and a new gas station with E85 opened just down the road, I flashed an E30 map with the corresponding mix in the tank:

https://datazap.me/u/olivier/firste3...20-21-22-23-24

2-3-4 pull just fresh after the flash, adaptations not resetted
Feels definitely stronger, a bit worried on fuel trims (LPFP seems ok, >50)
Thoughts ?

Looks good, just keep an eye on LPFP, if it drops into the 50's LPFP upgrade recommended.

[Louayea]

Hey so my cars a fbo upgraded twin port injection car. I'm getting my car dialed in had a couple revisions si far. My tuner is on vacation so I'm coming here for help.I usually do 3rd gear logs and car looks pretty fine drops timing but nothing like this. I went out and did a log in a couple gears and the car just felt like it would die up top I look at the logs and timing drops bad to the point it gets negative . I was curious if this was a tuning related issue or mechanical. I parked the car now, I know it's not good lol. And sorry the the messy log you can see when I start going wot

https://datazap.me/u/louayea/testing...-26&solo=2

[Dave92N54]

Originally Posted by Louayea

Hey so my cars a fbo upgraded twin port injection car. I'm getting my car dialed in had a couple revisions si far. My tuner is on vacation so I'm coming here for help.I usually do 3rd gear logs and car looks pretty fine drops timing but nothing like this. I went out and did a log in a couple gears and the car just felt like it would die up top I look at the logs and timing drops bad to the point it gets negative . I was curious if this was a tuning related issue or mechanical. I parked the car now, I know it's not good lol. And sorry the the messy log you can see when I start going wot

https://datazap.me/u/louayea/testing...-26&solo=2

I'm currently on mobile so can't see that great but the first thing I noticed is your fuel trims, stft are off by 10%+ which imo I would start looking into it at that point. What index are your injectors? PCV setup? Any valve cover cracks/leaks? I would also start logging ltft as well.

[Louayea]

Originally Posted by Dave92N54

I'm currently on mobile so can't see that great but the first thing I noticed is your fuel trims, stft are off by 10%+ which imo I would start looking into it at that point. What index are your injectors? PCV setup? Any valve cover cracks/leaks? I would also start logging ltft as well.

Originally Posted by Dave92N54

I'm currently on mobile so can't see that great but the first thing I noticed is your fuel trims, stft are off by 10%+ which imo I would start looking into it at that point. What index are your injectors? PCV setup? Any valve cover cracks/leaks? I would also start logging ltft as well.

Thanks so probably mechanical not tune related right? Maybe my injector seals I put new index 12s in but can't remember if I did the seals.

[Dave92N54]

Originally Posted by Louayea

Thanks so probably mechanical not tune related right? Maybe my injector seals I put new index 12s in but can't remember if I did the seals.

If you put in brand new index 12s and followed the proper install (not removing the seal cap until directly before install, and new decouplers) than they should be fine, could be PI related, could be a wonky 02. Fuel trims can be a hard thing to track down, when I can get to a computer i'll look and see if anything else could point to what's causing it

[Louayea]

Originally Posted by Dave92N54

If you put in brand new index 12s and followed the proper install (not removing the seal cap until directly before install, and new decouplers) than they should be fine, could be PI related, could be a wonky 02. Fuel trims can be a hard thing to track down, when I can get to a computer i'll look and see if anything else could point to what's causing it

Gotcha thanks!

[Dave92N54]

Originally Posted by Louayea

Hey so my cars a fbo upgraded twin port injection car. I'm getting my car dialed in had a couple revisions si far. My tuner is on vacation so I'm coming here for help.I usually do 3rd gear logs and car looks pretty fine drops timing but nothing like this. I went out and did a log in a couple gears and the car just felt like it would die up top I look at the logs and timing drops bad to the point it gets negative . I was curious if this was a tuning related issue or mechanical. I parked the car now, I know it's not good lol. And sorry the the messy log you can see when I start going wot

https://datazap.me/u/louayea/testing...-26&solo=2

Looking at the log on a computer now, i'd focus on bank 1. Bank 1 seems to always be higher than 2, and when you decel at the end of the log, it never leans out like it should. This could indicate a bad 02 if injectors are in order and there are no boost leaks, however looking at your boost, you are down 2-3 psi most of the time so i'd say a boost leak could also be likely.

[akk]

Hi,

E92 n55 , mhd stage 1+
I started my car today and got a bunch of misfires for like a minute, then it evened out. Pulled the codes and got misfires on all cylinders except cyl 5. Drove the car afterwards with no issues, but this hasn't happened before.
The only thing i can think of that's different today than other days is that I put in bmw fuel injector cleaner yesterday before filling up.

Should I be worried? Here's a data log:

https://datazap.me/u/akkorolyov/n55e...og=0&data=4-20

Are there any issues with the data recorded? I'm new to reading and understanding this stuff. Someone on FB has been helping me out and said I need to clean my vanos solenoids. Is this causing my timing corrections? Or is my fuel injector cleaner just messing with the octane rating?
TIA

[Saif2018]

Originally Posted by akk

Hi,

E92 n55 , mhd stage 1+
I started my car today and got a bunch of misfires for like a minute, then it evened out. Pulled the codes and got misfires on all cylinders except cyl 5. Drove the car afterwards with no issues, but this hasn't happened before.
The only thing i can think of that's different today than other days is that I put in bmw fuel injector cleaner yesterday before filling up.

Should I be worried? Here's a data log:

https://datazap.me/u/akkorolyov/n55e...og=0&data=4-20

Are there any issues with the data recorded? I'm new to reading and understanding this stuff. Someone on FB has been helping me out and said I need to clean my vanos solenoids. Is this causing my timing corrections? Or is my fuel injector cleaner just messing with the octane rating?
TIA

When did you do the plugs and coils?

Your timing corrections are probably caused by a combination of bad fuel (91oct) plus bad plugs/coils.

What did you use to log?

I was under the impression MHD Dataloging has a limit of 20 or so data entry max.

[gster109]

Recently picked up this n54 & you can see the km's in the clip, clip is from last summer when I was driving it daily. Without fail most of the time the starts would be weak like this.

Leaky injectors or possibly just fouled plugs from extended use? Maybe weak battery (which I confirmed) from sitting under the previous owners care?

Trying to track down a rough cold start issue, will do logs & pull the plugs tomorrow to examine.

Car has been sitting for 6 months I've only driven it for 2 before parking it, should I change the oil before starting it to be safe?

Would hate for the oil to be diluted since it's been sitting for so long with possible leaky injectors.

Previous owner did swap out injectors but I assume he was pulling used ones out of a junk yard or getting a deal and resealing them as a couple of older injectors were in the car when purchased and all on the car currently are mix match from 5-9 I believe.. Yes ideally I'd like to throw index 12's on it but I'd like to make sure as they're not cheap lol.

Have seen the nightmare stories of diluted oil causing spun bearings.

Current oil has around 4,000 km's on it, if not less.

Car also did have an almost fully discharged battery when I plugged it into the battery tender to rest over the winter, the charge took around 2 or more hours to complete back to full.

NO CODES, only 1 shadow one for no crankshaft sensor signal but people on the forums say to ignore it as it's a side effect of MHD tune.

Would appreciate any theory or insight, thanks.

View post on imgur.com

[Emilime75]

That sounds more like a battery/electrical issue than it does leaky fuel injectors. Possibly an aging starter on its way out. I'd start with a new battery and make sure the terminals are nice and clean and check your various ground points/straps

Not saying your injectors are perfect, but that video doesn't point to them.

[akk]

Originally Posted by Saif2018

When did you do the plugs and coils?
Your timing corrections are probably caused by a combination of bad fuel (91oct) plus bad plugs/coils.

What did you use to log?

I was under the impression MHD Dataloging has a limit of 20 or so data entry max.

plugs and coils done 9 months (15-20k kms) ago with stock replacement. could the timing corrections be caused by the techron fuel additive?

are there any issues with the vanos? someone told me my solenoids need to be cleaned/replaced after looking at the log.

I used mhd!

[Saif2018]

Originally Posted by akk

plugs and coils done 9 months (15-20k kms) ago with stock replacement. could the timing corrections be caused by the techron fuel additive?

are there any issues with the vanos? someone told me my solenoids need to be cleaned/replaced after looking at the log.

I used mhd!

Are you still getting misfires or have they been resolved?

Timing corrections likely due to a combination of plugs/coils and your fuel. 91 Oct.

[akk]

Originally Posted by Saif2018

Are you still getting misfires or have they been resolved?

Timing corrections likely due to a combination of plugs/coils and your fuel. 91 Oct.

no misfires since that one cold start..but i still cleaned the vanos solenoids and maf sensor today to see if that will help.

I would be surprised if the plugs or coils failed already, shouldnt they last longer? And ive always ran 91 in my car, rarely 94.

[Saif2018]

Originally Posted by akk

no misfires since that one cold start..but i still cleaned the vanos solenoids and maf sensor today to see if that will help.

I would be surprised if the plugs or coils failed already, shouldnt they last longer? And ive always ran 91 in my car, rarely 94.

Fuel additive shouldn't cause timing corrections from my understanding. Drive it for a few days and relog to see if they change.

91 Oct will typically give you more timing corrections than higher Oct fuel. Higher the Oct the better.

Coils should last more than 20km, plugs too, but they can fail and cause misfires, worn plugs /coils can also cause timing corrections,

[Donm512]

New to the forum just flashed mhd for the first time in my car this is my first log any input looks like I got a decent boost leak https://datazap.me/u/donald-martin/3...og=0&data=3-14

[Saif2018]

Originally Posted by Donm512

New to the forum just flashed mhd for the first time in my car this is my first log any input looks like I got a decent boost leak https://datazap.me/u/donald-martin/3...og=0&data=3-14

N55?

Pretty bad timing corrections, plugs/coils done recently?

Vacumn lines replaced?

Need to check your charge pipe, vacumn canister connection points etc , I'm assuming your running a metal one already.