[Bimmer_Bro]

Originally Posted by clopez976

Hello can you please take a look at my logs seems im not close to bost target ? I Would really apprecaite it thanks !


https://datazap.me/u/carlos-lopez/lo...&data=3-27


2009 BMW 335I LCI Sedan

5'VRSF FMIC
DP's
New index 12 injectors
New LPFP
Oem Turbos on 160k mILES (Currently waiting to install new purchsed turbos)
new water pump
Transmisison rebuild a few monts ago
dual cone intakes
step 1 colder plugs
new valve cover gasket
upgraded pcv valve & catch can
ingintion colis a few monts ago when i installed plugs not even 5k miles yet.
I

Have you ever replaced you're boost solenoids and vacuum lines? If you are positive you don't have a boost leak, I would start with solenoids.

[Saif2018]

Originally Posted by clopez976

Hello can you please take a look at my logs seems im not close to bost target ? I Would really apprecaite it thanks !


https://datazap.me/u/carlos-lopez/lo...og=0&data=3-27


2009 BMW 335I LCI Sedan

5'VRSF FMIC
DP's
New index 12 injectors
New LPFP
Oem Turbos on 160k mILES (Currently waiting to install new purchsed turbos)
new water pump
Transmisison rebuild a few monts ago
dual cone intakes
step 1 colder plugs
new valve cover gasket
upgraded pcv valve & catch can
ingintion colis a few monts ago when i installed plugs not even 5k miles yet.
I

You likely have a boost leak.

Follow this guide... (even if you don't have 30FF code)

https://bmwtuning.co/bmw-n54-30ff-en...-repair-guide/

[clopez976]

Thank You i checked but can seemed to find a leak. i did replace linces with silicone high heat rersitant a few months ago. & thank you for Link

[Saif2018]

Originally Posted by clopez976

Thank You i checked but can seemed to find a leak. i did replace linces with silicone high heat rersitant a few months ago. & thank you for Link

Boost solenoids been replaced?

Wastegate rods tightened?

[TyroneShoelaces]

I am just getting my N54 swap into my wagon finally running better after chasing some stuff down with the dsc faults. (AWD to RWD swap). The car is FBO with relocated inlets most of the mods came on my donor sedan except the relocated inlets.

Initially I had a cylinder 6 misfire and the car was seemingly running rich and fouling plugs, so I pulled the Jb4 out and swapped out to some used plugs that came with a donor to troubleshoot, swapped coils etc and always cylinder 6 misfire so I assumed injectors (still revision 1). But as I've been driving it more it seems like it's clearing up and not misfiring, maybe the injectors from sitting for approximately almost 1 year were sticking? Dunno I'm sure it won't last.

So using my protools (all the usual MHD paramaters might not be in the log) I've done a few logs and I'm wondering if anyone has stock logs I can compare to. I will put the Jb4 back on eventually after I get some new plugs and feel better about the car. Here is 2 logs one from a steady cruise and one from a light pull in 3rd as I'm honestly still not ready to wail on it.

https://datazap.me/u/n54wagen/3rd-ge...e?log=0&data=1

https://datazap.me/u/n54wagen/steady...s?log=0&data=1

[Bimmer_Bro]

Originally Posted by TyroneShoelaces

I am just getting my N54 swap into my wagon finally running better after chasing some stuff down with the dsc faults. (AWD to RWD swap). The car is FBO with relocated inlets most of the mods came on my donor sedan except the relocated inlets.

Initially I had a cylinder 6 misfire and the car was seemingly running rich and fouling plugs, so I pulled the Jb4 out and swapped out to some used plugs that came with a donor to troubleshoot, swapped coils etc and always cylinder 6 misfire so I assumed injectors (still revision 1). But as I've been driving it more it seems like it's clearing up and not misfiring, maybe the injectors from sitting for approximately almost 1 year were sticking? Dunno I'm sure it won't last.

So using my protools (all the usual MHD paramaters might not be in the log) I've done a few logs and I'm wondering if anyone has stock logs I can compare to. I will put the Jb4 back on eventually after I get some new plugs and feel better about the car. Here is 2 logs one from a steady cruise and one from a light pull in 3rd as I'm honestly still not ready to wail on it.

https://datazap.me/u/n54wagen/3rd-ge...g=0&data=1

https://datazap.me/u/n54wagen/steady...g=0&data=1

Is going to be hard to tell anything from those logs.
If they are index 1 then there is a good chance they are leaking.
If you want to rule this out... Park the car overnight. DO NOT start the car. Pull the spark plugs out and see if they are wet or stink like fresh fuel. This is the easiest way to tell.

[shinobi_1]

Can someone tell me if my timing correction in the beginning of my run is acceptable? Anyone problem areas

https://datazap.me/u/jadda7480/log-1...ta=2-3-4-20-23

[Saif2018]

Originally Posted by TyroneShoelaces

I am just getting my N54 swap into my wagon finally running better after chasing some stuff down with the dsc faults. (AWD to RWD swap). The car is FBO with relocated inlets most of the mods came on my donor sedan except the relocated inlets.

Initially I had a cylinder 6 misfire and the car was seemingly running rich and fouling plugs, so I pulled the Jb4 out and swapped out to some used plugs that came with a donor to troubleshoot, swapped coils etc and always cylinder 6 misfire so I assumed injectors (still revision 1). But as I've been driving it more it seems like it's clearing up and not misfiring, maybe the injectors from sitting for approximately almost 1 year were sticking? Dunno I'm sure it won't last.

So using my protools (all the usual MHD paramaters might not be in the log) I've done a few logs and I'm wondering if anyone has stock logs I can compare to. I will put the Jb4 back on eventually after I get some new plugs and feel better about the car. Here is 2 logs one from a steady cruise and one from a light pull in 3rd as I'm honestly still not ready to wail on it.

https://datazap.me/u/n54wagen/3rd-ge...e?log=0&data=1

https://datazap.me/u/n54wagen/steady...s?log=0&data=1

Actual Boost psi, and Timing corrections between all 6 cylinders are missing, so is Wastegate Duty cycle, load requested and actual also missing

[Saif2018]

Originally Posted by shinobi_1

Can someone tell me if my timing correction in the beginning of my run is acceptable? Anyone problem areas

https://datazap.me/u/jadda7480/log-1...ta=2-3-4-20-23

They are minor corrections under 3 degrees which clear up, even the one at the end is minor.

You on a custom tune?

[shinobi_1]

Originally Posted by Saif2018

They are minor corrections under 3 degrees which clear up, even the one at the end is minor.

You on a custom tune?

Yes I am

[Saif2018]

Originally Posted by shinobi_1

Yes I am

Sent the log over to the tuner for a revision?

[ash6r]

Hey guys I just did my first data log on my N54 135i manual. Its on 119.4k miles. Completly stock right now but want to flash on stage 1+. I've just changed OFHG/Oil cooler gasket. No other oil leaks. Turbos have started to rattle but i've read that its okay to run MHD stage 1. Is that true? Ive also changed one of the boost solenoids, waiting for the other one to come tomorrow. Does the engine seem healthy to push? Mainly worried about the injectors. Both lambdas shoot up to 234 straight after WOT which is what you want apperantly.


https://datazap.me/u/ashe82/log-1646...?log=0&data=15

[Saif2018]

Originally Posted by ash6r

Hey guys I just did my first data log on my N54 135i manual. Its on 119.4k miles. Completly stock right now but want to flash on stage 1+. I've just changed OFHG/Oil cooler gasket. No other oil leaks. Turbos have started to rattle but i've read that its okay to run MHD stage 1. Is that true? Ive also changed one of the boost solenoids, waiting for the other one to come tomorrow. Does the engine seem healthy to push? Mainly worried about the injectors. Both lambdas shoot up to 234 straight after WOT which is what you want apperantly.


https://datazap.me/u/ashe82/log-1646...?log=0&data=15

Your HPFP is dropping a bit low into the 1500psi up top, but should be okay to run stage 1 map. You'll need to log again after flashing to see if the HPFP is ok

Try adjusting rods to fix WG rattle, if it doesn't work you can try MHD rattle fix but it will introduce lag.

Have you upgraded the Charge pipe to a metal one?

It's highly recommended to have FMIC upgrade before flashing stage 1+ map

[ash6r]

Originally Posted by Saif2018

Your HPFP is dropping a bit low into the 1500psi up top, but should be okay to run stage 1 map. You'll need to log again after flashing to see if the HPFP is ok

Try adjusting rods to fix WG rattle, if it doesn't work you can try MHD rattle fix but it will introduce lag.

Have you upgraded the Charge pipe to a metal one?

It's highly recommended to have FMIC upgrade before flashing stage 1+ map

Yh I noticed that on the log as well. I thought that might have happened because I filled up with BP Ultimate 97RON instead of 99RON which I usually use. What do you think of the LPFP and injectors?

[Saif2018]

Originally Posted by ash6r

Yh I noticed that on the log as well. I thought that might have happened because I filled up with BP Ultimate 97RON instead of 99RON which I usually use. What do you think of the LPFP and injectors?

I doubt the octane rating has anything to do with your HPFP,

Log timing corrections cylinders 1-6 and LTFT banks 1 and 2 nwxt time.

You can always flash stage 1 and log it to see if it's running ok, if it drops below 1500 psi then it could potentially be failing.

LPFP looks fine. You can pull plugs and see of they are wet or smell of fuel, this would indicate leaking injectors. I can't see anything from your log to indicate leaking injectors.

[ash6r]

Originally Posted by Saif2018

I doubt the octane rating has anything to do with your HPFP,

Log timing corrections cylinders 1-6 and LTFT banks 1 and 2 nwxt time.

You can always flash stage 1 and log it to see if it's running ok, if it drops below 1500 psi then it could potentially be failing.

LPFP looks fine. You can pull plugs and see of they are wet or smell of fuel, this would indicate leaking injectors. I can't see anything from your log to indicate leaking injectors.

I dont have the option to log LTFTs on my MHD. I'll do another log and post it soon.

[Saif2018]

Originally Posted by ash6r

I dont have the option to log LTFTs on my MHD. I'll do another log and post it soon.

MHD has LTFT bank 1 and 2 logging option. You may have to deselect some of the options you don't need. If I recall correctly something like 20 parameters can be logged at a time. Deselect Tmap sensor voltage, Maf g/s, WGDC bank 2, PID

[ash6r]

Originally Posted by Saif2018

MHD has LTFT bank 1 and 2 logging option. You may have to deselect some of the options you don't need. If I recall correctly something like 20 parameters can be logged at a time. Deselect Tmap sensor voltage, Maf g/s, WGDC bank 2, PID

I don't have those options for some reason on my MHD app. These are the options I have. Do I need to have it connected to my car to see those extra options.

[studio54]

Originally Posted by ash6r

I don't have those options for some reason on my MHD app. These are the options I have. Do I need to have it connected to my car to see those extra options.

That's weird, but yeah, connect your car and see if LTFT appears.

[Saif2018]

Originally Posted by ash6r

I don't have those options for some reason on my MHD app. These are the options I have. Do I need to have it connected to my car to see those extra options.

I've checked on my phone, the options should list even if your disconnected. Try connecting, resetting default channels, if it still doesn't show,

Email mhd.tuning@gmail.com ask them

[ash6r]

Originally Posted by Saif2018

I've checked on my phone, the options should list even if your disconnected. Try connecting, resetting default channels, if it still doesn't show,

Email mhd.tuning@gmail.com ask them

I'll check out MHD tomorrow. I also sent MHD my log and they said it looks normal for stock map.

[Freemorfeem]

Hi, y'all, still learning how to read my logs. I'd love some insight into my Timing corrections and LPFP psi.

I've been on this journey since mid summer '21. I'm now FBO. I ran MHD v8 st 1+ for 3K mi / 3mo. Just flashed to v10 stg 2+ and ran some logs.

v8 Stg 1+ (ran for 3 months / 3K mi.) - 3 LOGS HERE
https://datazap.me/u/mmattei2gmailco...-9-10-11-12-21

v10 Stg 2+ (just flashed and ran logs) - 3 LOGS HERE
https://datazap.me/u/mmattei2gmailco...7-8-9-10-11-21

Going from 1+ to 2+ my LPFP is hanging around 46psi in the upper RPM's, whereas before it was low 50's.

The timing corrections have always been present in this engine. At stage 0 I had them. I upgraded my coils and plugs (now NGK 1step colder) in November and that didn't seem change anything. But the smoothness improved drastically & the misfires went away.

The car seems to drive very smoothly! But the data logs show timing corrections, usually in the -2 to -3 degrees, consistent across most cylinders. Every now and then I'll see -4 to -6.

My concern derives from what I read in the MHD PDF, "Corrections that seem to be random, or never happen at the same load of up -3° are deemed to be
acceptable as long as it’s not across multiple cylinders at a time."

I'm not sure what to do, especially since decreased loads and boosts still see these timing corrections. I'm pretty much stuck with 93 OCT where I'm at, too, as far as I can tell (Austin, TX).

Thanks a million!!!