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      01-15-2020, 08:14 AM   #3697
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Quote:
Originally Posted by 335imax View Post
Seems to happen more frequently on warm days. I think it happens on first acceleration after sitting for a while, or cold start. Almost like the vehicle is not getting fuel. But its 1 and done for the driving session. I usually don't let the car warm up. I just start it and drive off. I will try starting and let it idle for 30 seconds and then drive off and report.
So you are completely stock, correct?

When was the last time you checked or changed your spark plugs?

Was your car affected by the HPFP recall?
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      01-15-2020, 08:41 AM   #3698
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Quote:
Originally Posted by 335imax View Post
Seems to happen more frequently on warm days. I think it happens on first acceleration after sitting for a while, or cold start. Almost like the vehicle is not getting fuel. But its 1 and done for the driving session. I usually don't let the car warm up. I just start it and drive off. I will try starting and let it idle for 30 seconds and then drive off and report.
When did this issue start happening?
Is it in relation to having the MHD OTS map installed?

I think that we can generally rule out tune/configuration errors by flashing back to stage 0 or, in worst case, stock.

If this were my car, I would flash to "stage 0" so that the car can start up cold / after sitting on stage 0.
- Note if the issue still happens

If the issue still happened, I would flash back to stock.

THEN, if the issue still happened, I would resort into diagnosing hardware.

2 pence.
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      01-16-2020, 07:47 AM   #3699
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Additional Info

I have only had the tune on the car 30 days, and it started the first day I installed the tune. I have not tried running on stage 0, but can. I have no performance mods yet, no intake, all stock. I am glad nobody else has this problem leading me to believe its not the tune, its the car. I have an extended warranty but with no thrown codes not sure what to complain about. I am at 50k miles and I'm sure the plugs are original.
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      01-16-2020, 01:02 PM   #3700
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Quote:
Originally Posted by 335imax View Post
I have only had the tune on the car 30 days, and it started the first day I installed the tune.

Quote:
Originally Posted by 335imax View Post
I am glad nobody else has this problem leading me to believe its not the tune
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      02-07-2020, 10:13 AM   #3701
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another quick question

if i wanted to run the MHD Stage2+ with the JB4 quick install would this cause a problem?

do i need to flashed mhd backend flash or just install the quick install tuner and be happy

https://burgertuning.com/collections...-install-tuner
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      02-07-2020, 10:56 AM   #3702
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Quote:
Originally Posted by e38740imd View Post
another quick question

if i wanted to run the MHD Stage2+ with the JB4 quick install would this cause a problem?

do i need to flashed mhd backend flash or just install the quick install tuner and be happy

https://burgertuning.com/collections...-install-tuner
Yes, MHD has said JV4 will cause an issues, even on map 0. Remove it.
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      02-07-2020, 11:05 AM   #3703
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Quote:
Originally Posted by AmuroRay View Post
Yes, MHD has said JV4 will cause an issues, even on map 0. Remove it.
thanks for the reply!

im about to jump on a used srint booster and he wants to sell the quicker tuner as well as a bundle. i will now just get the sprint (V2)
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      02-07-2020, 09:46 PM   #3704
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Unbelievably fast first MHD write time

First post so no pressure right? Ok, so I just flashed my car couple of days ago with the MHD stage 1 map and everything went really well. Almost too well which is why I'm asking. First time flashing it said full write was 9-25 min. Pressed the button, saw it erasing sections, writing, etc. Well holy lightspeed Batman it took all of 2.9 min! I'm using the MHD wifi adapter but I'm wondering if anyone has seen a first time write this quick? Bought my car as CPO so just assumed it was never flashed but when I pulled the codes before I did the flash I noticed a shadow code for 1E5301 - Protection against tampering: Engine power output too high. The fast write speed along with the shadow code leaves me wondering if the car was tuned before and if it was shouldn't that have voided the CPO process? I'm just more curious than anything. Anyway, here are a couple of logs. Any feedback is welcome. Planning on doing the necessary supporting mods, plugs, coils, cp, walnut blast, etc. then some of the fun ones!

4th wot:
https://datazap.me/u/truenutty1/4th-wot?log=0&data=4-17
1-4 @ ~85% wot
https://datazap.me/u/truenutty1/1-4-...og=0&data=4-17
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      02-08-2020, 10:40 AM   #3705
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The WiFi adapter flashes like 6-7x faster than the kdcan (my cable flash did take ~30 mins, with each flash after taking ~3 mins. When I switched to the WiFi adapter, flashes went from 3 mins to ~30s)

I do not think your vehicle was previously modified.
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      02-08-2020, 11:17 AM   #3706
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Quote:
Originally Posted by 335imax View Post
I have only had the tune on the car 30 days, and it started the first day I installed the tune. I have not tried running on stage 0, but can. I have no performance mods yet, no intake, all stock. I am glad nobody else has this problem leading me to believe its not the tune, its the car. I have an extended warranty but with no thrown codes not sure what to complain about. I am at 50k miles and I'm sure the plugs are original.
Someone needs to Google "Occam's Razor"
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      02-08-2020, 11:31 AM   #3707
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Quote:
Originally Posted by TrueNutty1 View Post
First post so no pressure right? Ok, so I just flashed my car couple of days ago with the MHD stage 1 map and everything went really well. Almost too well which is why I'm asking. First time flashing it said full write was 9-25 min. Pressed the button, saw it erasing sections, writing, etc. Well holy lightspeed Batman it took all of 2.9 min! I'm using the MHD wifi adapter but I'm wondering if anyone has seen a first time write this quick? Bought my car as CPO so just assumed it was never flashed but when I pulled the codes before I did the flash I noticed a shadow code for 1E5301 - Protection against tampering: Engine power output too high. The fast write speed along with the shadow code leaves me wondering if the car was tuned before and if it was shouldn't that have voided the CPO process? I'm just more curious than anything. Anyway, here are a couple of logs. Any feedback is welcome. Planning on doing the necessary supporting mods, plugs, coils, cp, walnut blast, etc. then some of the fun ones!

4th wot:
https://datazap.me/u/truenutty1/4th-wot?log=0&data=4-17
1-4 @ ~85% wot
https://datazap.me/u/truenutty1/1-4-...og=0&data=4-17
Your timing looks pretty bad, so maybe you need to swap out your spark plugs or the fuel quality in your area might be shitty.

Do you have access to higher octane gas?

Also, what is the year, make, model and mileage of your car?

Any mods or completely stock?

Last edited by Munchi435i; 02-08-2020 at 11:44 AM..
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      02-09-2020, 12:28 PM   #3708
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Quote:
Originally Posted by TrueNutty1 View Post
First post so no pressure right? Ok, so I just flashed my car couple of days ago with the MHD stage 1 map and everything went really well. Almost too well which is why I'm asking. First time flashing it said full write was 9-25 min. Pressed the button, saw it erasing sections, writing, etc. Well holy lightspeed Batman it took all of 2.9 min! I'm using the MHD wifi adapter but I'm wondering if anyone has seen a first time write this quick? Bought my car as CPO so just assumed it was never flashed but when I pulled the codes before I did the flash I noticed a shadow code for 1E5301 - Protection against tampering: Engine power output too high. The fast write speed along with the shadow code leaves me wondering if the car was tuned before and if it was shouldn't that have voided the CPO process? I'm just more curious than anything. Anyway, here are a couple of logs. Any feedback is welcome. Planning on doing the necessary supporting mods, plugs, coils, cp, walnut blast, etc. then some of the fun ones!

4th wot:
https://datazap.me/u/truenutty1/4th-wot?log=0&data=4-17
1-4 @ ~85% wot
https://datazap.me/u/truenutty1/1-4-...og=0&data=4-17
As mentioned above, timing isnt great. Typical for using 91 octane gas in CA, NV, AZ, and pacific NW. Also, IATs start fairly high and rise quickly, as expected with stock IC. Recommend IC upgrade sooner rather than later, it really helps you get the most out of any tune (even though technically not "required" for stage 1).

Also, coils and walnut blast are really not needed as preventative maintainance on N55. Plenty of people go to 100k+ without walnut blasting (unlike N54). Coils are more of a replace as needed as well. Plugs should be done every 30k or so once tuned.
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      02-10-2020, 01:11 AM   #3709
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Quote:
Originally Posted by Munchi435i View Post
Your timing looks pretty bad, so maybe you need to swap out your spark plugs or the fuel quality in your area might be shitty.

Do you have access to higher octane gas?

Also, what is the year, make, model and mileage of your car?

Any mods or completely stock?
Bone stock 2013 335i 70k. Unfortunately, I'm in Los Angeles so no real option for higher octane. Would you recommend an oct booster? I'm gonna get new plugs this week so hopefully that helps.

Quote:
Originally Posted by thejeremyman9 View Post
As mentioned above, timing isnt great. Typical for using 91 octane gas in CA, NV, AZ, and pacific NW. Also, IATs start fairly high and rise quickly, as expected with stock IC. Recommend IC upgrade sooner rather than later, it really helps you get the most out of any tune (even though technically not "required" for stage 1).

Also, coils and walnut blast are really not needed as preventative maintainance on N55. Plenty of people go to 100k+ without walnut blasting (unlike N54). Coils are more of a replace as needed as well. Plugs should be done every 30k or so once tuned.
Yea I kinda figured that timing would be pretty bad. I was impatient and took those logs right after the flash so the O2 sensor was still reading INCOMPLETE. Today, however, I noticed less corrections across the board and even less so when wot. Hopefully they continue to improve after I install new plugs. Thanks for the suggestions! Now you got me rethinking mod order...
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      02-10-2020, 11:44 AM   #3710
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Quote:
Originally Posted by TrueNutty1 View Post
Bone stock 2013 335i 70k. Unfortunately, I'm in Los Angeles so no real option for higher octane. Would you recommend an oct booster? I'm gonna get new plugs this week so hopefully that helps.



Yea I kinda figured that timing would be pretty bad. I was impatient and took those logs right after the flash so the O2 sensor was still reading INCOMPLETE. Today, however, I noticed less corrections across the board and even less so when wot. Hopefully they continue to improve after I install new plugs. Thanks for the suggestions! Now you got me rethinking mod order...
What i did was:

Log completely stock car --> Install IC+CP --> log --> flash stage 1 (with IC+CP) --> Log

After fixing all issues with the above, i waited a couple of months, then installed fabspeed catted DP --> logged --> flashed stage 2+ (IC+CP+DP now), and make sure the car was sorted. Ive been like that for about 2 months now, cars runs great. I even autocrossed it on Saturday with no issues. I am still on OEM plugs with 43k miles on them, but plan to change pretty soon at next service. Everything is OEM/original performance wise except for the IC+CP+DP (coils, etc).

EDIT: I am also in CA and on 91 octane gas with 91 tune. Timing is clean sometimes, not great other times. No real pattern. I have E85 near me and will probably be trying out the E20 tunes soon.
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      02-24-2020, 08:25 AM   #3711
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Flashed my N55 today via MHD for the first time and it failed the first time!! My car was inoperative!
Got me pretty upset.
Tried flashing it a second time and it went through without a hitch. Thank god! All seems well now.


Anyone have an issue with datalogging lagging or freezing up with the MHD wireless F adapter?

Im using a brand new samsung 8 inch tablet with the new mhd wireless adapter and datalogging seems to freeze up and lag?
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      02-24-2020, 10:42 AM   #3712
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Quote:
Originally Posted by 5soko View Post
Flashed my N55 today via MHD for the first time and it failed the first time!! My car was inoperative!
Got me pretty upset.
Tried flashing it a second time and it went through without a hitch. Thank god! All seems well now.


Anyone have an issue with datalogging lagging or freezing up with the MHD wireless F adapter?

Im using a brand new samsung 8 inch tablet with the new mhd wireless adapter and datalogging seems to freeze up and lag?
Make sure you are using the most updated version of the MHD app.
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      02-24-2020, 07:28 PM   #3713
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Welcome to my MHD rant.

Backstory: I have a 2014 335xi, and have always loved the car. But I have always been searching for the perfect modifications. My first couple of power mods were a Burger Motorsports JB4, airfilter, and Evolution Racewerks downpipe.

Alright now on too MHD. I upgraded to MHD after hearing about it. I have ran a combo of Stage2+ e30 when at home, and stage2+ 91. I like the flexibility of the 91 octane because when I have 93, I put it in the tank. The car runs quite smooth. It has a great amount of pull in the mid range compared to the JB4. I find the comfort mode great, as when you get the throttle perfect, the car does not downshift, but it pushes you back in your seat with the amount of Torque. I have installed XHP with stock shift-mapping and shift speed. The only thing I have modified is clamping force and Torque limiters. Over all I am a very happy customer 😃
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      02-24-2020, 08:03 PM   #3714
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Quote:
Originally Posted by claytonkethe View Post
Welcome to my MHD rant.

Backstory: I have a 2014 335xi, and have always loved the car. But I have always been searching for the perfect modifications. My first couple of power mods were a Burger Motorsports JB4, airfilter, and Evolution Racewerks downpipe.

Alright now on too MHD. I upgraded to MHD after hearing about it. I have ran a combo of Stage2+ e30 when at home, and stage2+ 91. I like the flexibility of the 91 octane because when I have 93, I put it in the tank. The car runs quite smooth. It has a great amount of pull in the mid range compared to the JB4. I find the comfort mode great, as when you get the throttle perfect, the car does not downshift, but it pushes you back in your seat with the amount of Torque. I have installed XHP with stock shift-mapping and shift speed. The only thing I have modified is clamping force and Torque limiters. Over all I am a very happy customer 😃
Are you running stage 2+ with a stock IC and CP, or did you just not list those mods?

Would love to see a log or two.
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      02-24-2020, 08:07 PM   #3715
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Quote:
Originally Posted by thejeremyman9 View Post
Quote:
Originally Posted by claytonkethe View Post
Welcome to my MHD rant.

Backstory: I have a 2014 335xi, and have always loved the car. But I have always been searching for the perfect modifications. My first couple of power mods were a Burger Motorsports JB4, airfilter, and Evolution Racewerks downpipe.

Alright now on too MHD. I upgraded to MHD after hearing about it. I have ran a combo of Stage2+ e30 when at home, and stage2+ 91. I like the flexibility of the 91 octane because when I have 93, I put it in the tank. The car runs quite smooth. It has a great amount of pull in the mid range compared to the JB4. I find the comfort mode great, as when you get the throttle perfect, the car does not downshift, but it pushes you back in your seat with the amount of Torque. I have installed XHP with stock shift-mapping and shift speed. The only thing I have modified is clamping force and Torque limiters. Over all I am a very happy customer 😃
Are you running stage 2+ with a stock IC and CP, or did you just not list those mods?

Would love to see a log or two.
So that was back when I was running the JB4, current mods are Afe cold air intake, Evo Racewerks IC, DP, CP, and NGK M3 plugs. I will try to do a proper log soon, but the car runs fantastic. I am coming up on the time to change trans fluid and plugs.
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      03-01-2020, 04:02 PM   #3716
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I just put an Mhd stage 2 plus tune and everything is running smoothly but I noticed an options tab and I don't know what most of it means I Left everything the way it was but was wondering if anyone knows what these options do and could take a moment to explain them so I can go back and reenable them or leave them disabled
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      03-01-2020, 06:11 PM   #3717
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Quote:
Originally Posted by Miami03boy View Post
I just put an Mhd stage 2 plus tune and everything is running smoothly but I noticed an options tab and I don't know what most of it means I Left everything the way it was but was wondering if anyone knows what these options do and could take a moment to explain them so I can go back and reenable them or leave them disabled
startup roar is a light blip of the throttle when starting the car.

burble lets you customize you burble/pop setting based on comfort/sport as well as aggression/duration and rpm/speed

cold start noise reduction allows your car to bypass the cat heating process for the first ~10 seconds of starting your car cold, if you have a catless downpipe or maybe don't want to wake up family early morning and you have a loud exhaust.

exhaust flap always open, the flap on the left tail pipe opens and closes based on pedal/rpm input so this just keeps it open at all times. kind of like the old "golf tee mod" on the N54.

oem/catted dp, if you have a catless dp this will avoid getting a CEL.

remove top speed limiter, self explanitory.

coolant target, allows your car to target lower engine/coolant temps and is a feature from the M cars.

limit power by gear, also self explanitory.. maybe your having traction issues in 2nd, this allows you to fix it.

linear throttle mapping, based on comfort or sport pedal response is adjusted, this keeps 10% pedal=10%throttle, 50% pedal=50% throttle etc.. where sport is more aggressivley mapped like 20% pedal=30% throttle (just an example)

3.5 bar n20 sensor, people with an aftermarket turbo pushing higher boost usually have this sensor installed because it can detect higher boost.

precision coils, dorch, and xdi fuel pumps, if you have any of these parts installed you would check the box.

hope this helps
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      03-13-2020, 10:34 AM   #3718
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♦ MHD Flasher F+G Series V1.47 ♦

◦ B58/S58/F90: added the start up roar option.
◦ B58 gen1: added logging RAM channels for Boost target, Load actual, WG distribution factor.
◦ Fixed supra RAM logging, b58gen1 custom tunes load cap at 200.
◦ More vehicles supported.
◦ User manual update.
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