[a335i]

Thanks for the quick response do you recommend one for my setup

[JazRedGT]

Yeah meth is great for keeping IATs down and will help a little with octane. Just use the PUMP flash.

[MHD]

Originally Posted by brainsurgery

Is there any chance to get new Fuel (Start) tables modified to E85 BEF to tackle cold start issues?

Or has anyone good instructions and settings to modify those tables? It's getting quite cold here in Finland

http://www.bimmerboost.com/showthrea...791#post737791

Originally Posted by K.Jameel

I want to flash back to stock completely I don't have DME backup file.
I tried flash back to stock car didn't start MHD should remains installed..!

What error did you get?

Originally Posted by e36luv

Please help!

I attempted to do a MHD jb4 BEF for ST IJEOS pump gas. I backed up the sock map. Then I attempted flashing with the tablet in airplane mode, 12V6amp charger from HF,jb4 in map 0, me outside of the car, doors closed. I tried 3 times and never got past 3% (failure to write ECU. Falied to write packet section 113) (failure to write ECU. Falied to write packet section 536) I don't remember what the 3rd one said. I went to double check that jb4 was in map 0 but now the steering wheel menu for jb4 doesn't work nor will it connect to Bluetooth. On the final attempt I did it with the fuel pump fuse pulled however I didn't give the battery anytime to build back up if it even dropped amperage at all in the first place.
Any ideas?

Random write failures are often due to either current supply or cheap KDcan cables.

Originally Posted by a335i

Thanks for the support you bring with this page and discussions, I hope you can help me out on which flash to get for my new parts installed.

2008 BMW 335i sedan Automatic with JB4 with latest firmware and MHD App

I just added some parts to my car and do not no such map or flash use with the new parts here's the list:

4 bar TMAP
VTT turbo lite gc stock location
VTTinlets
VRSF intakes
VTT outlets
VRSF 7 inch intercooler
VRSF Charge Pipe with HKS BOV
VRSF charge pipe with hks bov
BMS methanol injection single cm 10 nozzle
Fuel- it stage 1 LPFP

Race flash.

[MHD]

Originally Posted by FEDE/E92

Stupid question. I'm getting ready go ST in a few weeks. I'm currently running MHD and will be running JB4 Bef for my setup. Can I hook up my JB4 and run it on map 0 with the MHD till I finally start my built?

Activate the option 4.4 so the JB4 follows the DME boost control.

Originally Posted by blown07

I'm about to try the MHD race flash for the first time but noticed in tuner pro that the timing on the BMS MHD race flash is 2 to 3 degrees less than BMS BB Flash up top. Any reason for that?
Just wondering if I copy my modified timing tables from the BMS BB flash over to MHD which are 3 to 4 degrees more up top.

Thanks

It depends on the actual load, there's more to consider. Log first as is.

Originally Posted by Aimfor500

So i'm totally confused on this whole tune thing. I just bought a JB4 and I'm about to install it tomorrow. What is an MHD back end flash? How does it work? Do I just flash MHD like normal, then use the JB4 at the same time?

MHD is a tool to flash DME maps and remap properly all aspects of the engine management (fueling, timing, torque request, boost etc). Flash only MHD maps are available in the app. The jb4 let's you override the DME boost control. The OEM DME map is more suited for OEM power which is why BMS proposes base DME maps to flash with MHD.

Originally Posted by Jians535

I want to run e60 mix so I can run higher boost than 17psi how can I if I have jb4 can I use the mhd back end flash ? Will jb4 still work etc I have a walbro 450 I need to install

Use the BMS e85 map.

[Terry @ BMS]

Added 12/13/16 maps to the first post. Main change was to add the improved E85 cold start mapping to all E85 maps.

[phv628]

Originally Posted by Terry @ BMS

Added 12/13/16 maps to the first post. Main change was to add the improved E85 cold start mapping to all E85 maps.

Excellent! I was having major issues firing up the car for the past few weeks.

[brainsurgery]

Originally Posted by Terry @ BMS

Added 12/13/16 maps to the first post. Main change was to add the improved E85 cold start mapping to all E85 maps.

yeah!

[Terry @ BMS]

Let me know how the table changes work. It's only ~50 degrees here so I dialed that in and then guessed for colder temps.

[AbacusRacingN54]

Originally Posted by Terry @ BMS

Let me know how the table changes work. It's only ~50 degrees here so I dialed that in and then guessed for colder temps.

Worked great at 39 degrees this morning. Supposed to hit the 20s tomm so we will test it

[JazRedGT]

Was that in Norfolk, VA this morning?

[AbacusRacingN54]

Originally Posted by JazRedGT

Was that in Norfolk, VA this morning?

Yea man. 39 on the dash. Prolly a lil warmer

[FEDE/E92]

Stupid question do i have to download the latest map release or I need all of them?

[Terry @ BMS]

Just the latest.

[phv628]

Originally Posted by Terry @ BMS

Let me know how the table changes work. It's only ~50 degrees here so I dialed that in and then guessed for colder temps.

Today was -10 F and the car fired up much easier. Before I had to crank 6 to 8 times even with the FUD enabled for e85 cold starts.

Good work Terry!

[Schin]

I was thinking about doing the MHD backend flash. do i have to purchase the MHD flasher then the backend flash or i just need to purchase the backend flash. just starting out so i haven't purchase anything yet just don't want to start buy thing then find out i didn't really need it

[a335i]

Ive just installed the MHD with JB4 STAGE 2+ 93 octane flash got some codes that pop up every time I start the car:
2FA3, 2D2E, 2ABD, 3100, 2ABC, 0000 maybe someone can help o do I need to change flash?

Also how can I now activate my BMS water -meth kit with this flash thanks

My car 2008 335i sedan Automatic.

[mohamed92a]

Originally Posted by Schin

I was thinking about doing the MHD backend flash. do i have to purchase the MHD flasher then the backend flash or i just need to purchase the backend flash. just starting out so i haven't purchase anything yet just don't want to start buy thing then find out i didn't really need it

You just need to purchase the JB4 Only Backend flasher for $79 and download the backend flash files from N54tech .

[MHD]

Originally Posted by a335i

Ive just installed the MHD with JB4 STAGE 2+ 93 octane flash got some codes that pop up every time I start the car:
2FA3, 2D2E, 2ABD, 3100, 2ABC, 0000 maybe someone can help o do I need to change flash?

Also how can I now activate my BMS water -meth kit with this flash thanks

My car 2008 335i sedan Automatic.

2fa3 coding missing will get coded away if you do MHD > clear DME codes. As for other codes, do you have 3.5 or 4 bar sensor installed?

[a335i]

Originally Posted by MHD

2fa3 coding missing will get coded away if you do MHD > clear DME codes. As for other codes, do you have 3.5 or 4 bar sensor installed?

I had the 4 bar sensor I removed it yesterday and isntalled stock back on and no codes appeared a did this just to try something,

[MHD]

Originally Posted by a335i

I had the 4 bar sensor I removed it yesterday and isntalled stock back on and no codes appeared a did this just to try something,

You need to setup the jb4 for the 4 bar sensor if the jb4 is controlling boost.

[a335i]

Originally Posted by MHD

You need to setup the jb4 for the 4 bar sensor if the jb4 is controlling boost.

yes hello i changed the option N20 (2) in the jb4 setting im running your stage 2+ but i get a lot of codes since i isntalled the 4 bar tmap sensor such as

2ABC, 3100,2FA3,2ABD this is when i have the 4 tmap sensor, so i did a test and changed back to stock tmap sesnor changed the jb4 to option 0 in the N20 and all my codes went away, so i need help

[AKE90M.]

Can you run MHD race BEF on straight 91 or is 93 octane minimum required?
We only have 91 in California.. Also, does the BEF's remove the speed delimiter?

[FEDE/E92]

If I'm currently running MHD stage 2 and plane to add JB4 do I need to flash back to stock or can I just flash JB4 BEF flash?

[AKE90M.]

Originally Posted by FEDE/E92

If I'm currently running MHD stage 2 and plane to add JB4 do I need to flash back to stock or can I just flash JB4 BEF flash?

You need to put the JB4 to 4/4 to fully bypass it I believe.

[RSicks]

Originally Posted by AKE90M.

Can you run MHD race BEF on straight 91 or is 93 octane minimum required?
We only have 91 in California.. Also, does the BEF's remove the speed delimiter?

California has E85, mixing a small amount with ACN91 will help get you to 93. At first I was using NOS octane booster from Autozone each tank to allow running a 93 tune - until I made the switch to E85 and I have not looked back.