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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > MHD Flasher for N54 - general discussion



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      09-26-2018, 08:05 AM   #11661
roadkillrob
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Quote:
Originally Posted by HooDat View Post
Quick question, I have to take my emissions test and require FULL readiness... I am installing my downpipe fix, do I also need to flash back to stock map? Thanks
Either flash back to stock or Stage 0 (Stock Map with MHD Still installed). You can also turn the O2 sensors back on in other maps, but best to just go stock to get tested.
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      09-27-2018, 03:39 AM   #11662
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Quote:
Originally Posted by TheMidnightNarwhal View Post
I've seen different things said on this.

If I run MHD stage 2 do I keep original spark plugs or get these "colder" ones?
I think you should have colder ones. That applies to higher boost which comes with higher stages and to running E85 blends due to ethanol igniting differently.

I am running either stage 2+ on 93 RON or 2+ 93E30 and haven't got any misfires using NGK 95770 at 0.022" gap. I have run them for maybe 11-12k miles so far and not a single misfire.
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      09-27-2018, 03:43 AM   #11663
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I have stage 2+ 93-98 Ron and still have spark plugs Bosch without any problems.Should I get NGK?
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      09-27-2018, 06:50 AM   #11664
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Check if you have timing corrections and how the plugs themselves look.
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      09-27-2018, 06:55 AM   #11665
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Quote:
Originally Posted by Betmenas View Post
I think you should have colder ones. That applies to higher boost which comes with higher stages and to running E85 blends due to ethanol igniting differently.

I am running either stage 2+ on 93 RON or 2+ 93E30 and haven't got any misfires using NGK 95770 at 0.022" gap. I have run them for maybe 11-12k miles so far and not a single misfire.
Quote:
Originally Posted by cristy7610 View Post
I have stage 2+ 93-98 Ron and still have spark plugs Bosch without any problems.Should I get NGK?
I guess I'll keep OEM for now then.

I will only run Stage 2 on 91 Octane.
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      09-29-2018, 03:17 PM   #11666
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Quote:
Originally Posted by Jerain View Post
Updated latest MHD flasher 1.72b and reflashed a full write with V8 stage 2+ 102RON. Now had two times the 30FF code, never had it before with 98Ron or V7... What could be wrong?
Again today on higher rpm, full boost and sudden 30FF, Reset it and everything back ok, full boost pressure in midrange. Reflashed to stage 2+ V7.1 98RON and no problems at all, full power and boost until redline...

MHD Tuning
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      09-30-2018, 12:30 PM   #11667
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I flashed back to mhd map 0 but keep getting Catalysts and Evaporative System INCOMPLETE and Heated Catalyst Not Available. Do i have to check the oem/catted DP option when flashing??

Last edited by HooDat; 10-01-2018 at 01:57 AM.
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      10-01-2018, 10:14 AM   #11668
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Quote:
Originally Posted by HooDat View Post
I flashed back to mhd map 0 but keep getting Catalysts and Evaporative System INCOMPLETE and Heated Catalyst Not Available. Do i have to check the oem/catted DP option when flashing??
How many miles did you drive since flashing to stage 0? You might have to do the BMW readiness driving cycle to get them to set. And if it says not available that means it is not a test/part of the car, only worry about the ones saying incomplete.
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      10-01-2018, 10:57 AM   #11669
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Just Flashed Stage 1 - highway corrections

Used ASUS Memo Pad 7 and Burger Tuning cable to flash Stage 1.
No issues.
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      10-01-2018, 12:55 PM   #11670
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Quote:
Originally Posted by IllSic_Design View Post
How many miles did you drive since flashing to stage 0? You might have to do the BMW readiness driving cycle to get them to set. And if it says not available that means it is not a test/part of the car, only worry about the ones saying incomplete.
ahh okay I only drove like 10 miles before checking, i'll try to complete the drive cycle and check again. Thanks
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      10-03-2018, 09:02 PM   #11671
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Quote:
Originally Posted by roadkillrob View Post
I reset adaptations mentioned above, reflashed v8 stage 2+, disabled exhaust burble as I turned that on last flash also.

Seemed better on a quick drive, going to take it out later and test more fully - was going to log, but found out that costs more even though we are helping test a beta, guess we have to pay to help.

Car is a 2008 but low miles, 25k miles, newish plugs, original everything else, running ar catted DP's, HPF IC, Injen Dual Cone Intake and XHP Stage 3 trans flash.
Just to report back, no more issues since I reflashed it after the issue appeared and did above, back to smooth at part throttle high gear high load accelerations!
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      10-05-2018, 07:47 AM   #11672
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I have MHD 1.66 right now, and tested almost all versions, V6, V7, V8 Beta.... and it's working with a 2 minutes write. (except the first time of course)


If i update to 1.72, and want to do 2 minutes switch maps as usual like :
V7 to V8 beta
or
V8 beta to V7

The first switch will be a full write 38 mins ??

Why is that? does something has changed in the V8 beta ??
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      10-05-2018, 10:06 AM   #11673
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Quote:
Originally Posted by studio54 View Post
I have MHD 1.66 right now, and tested almost all versions, V6, V7, V8 Beta.... and it's working with a 2 minutes write. (except the first time of course)


If i update to 1.72, and want to do 2 minutes switch maps as usual like :
V7 to V8 beta
or
V8 beta to V7

The first switch will be a full write 38 mins ??

Why is that? does something has changed in the V8 beta ??
Same here when I updated last version, only now after update I have 30FF code with V8 stage 2+ 102RON

Probably due to higher boost in high RPM and not as much tapering as it used to be...
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      10-05-2018, 10:18 AM   #11674
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So uhhh. should I wait before flashing to Stage 2 91 Oct.

I'm getting my cable today.
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      10-05-2018, 11:38 AM   #11675
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Quote:
Originally Posted by studio54 View Post
I have MHD 1.66 right now, and tested almost all versions, V6, V7, V8 Beta.... and it's working with a 2 minutes write. (except the first time of course)


If i update to 1.72, and want to do 2 minutes switch maps as usual like :
V7 to V8 beta
or
V8 beta to V7

The first switch will be a full write 38 mins ??

Why is that? does something has changed in the V8 beta ??
Yes. Support for Flexfuel in V8.
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      10-05-2018, 03:11 PM   #11676
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Hi, could anyone have a look at my log? I initially posted it to the "take a look at my log thread" but have got no response so I am trying it here.

I ran it on MHD V8 E30 Stage 2+ map. Is my car up to it? I have stock LPFP with no upgrades so I am not sure whether the fuel supply is good enough. To me it seems that something may not be right with boost as it is always under target. There may be other issues, though, that more experienced of you will be able to identify.

https://datazap.me/u/taduxiss/log-15...og=0&data=3-22
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      10-05-2018, 08:18 PM   #11677
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Anyone able to help me out? Getting a boost leak from god knows where. I've replaced my boost solenoids, tightened the rear actuator rod, upgraded chargepipe and bov, upgraded fmic, redid all vacuum lines. I've been consistently getting it whenever I shift from 3rd to 4th after a pull or if I enter boost on the highway past 90ish mph. Any help is appreciated.

https://datazap.me/u/edris335i/boost...=0&data=3-5-22
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      10-05-2018, 08:24 PM   #11678
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Quote:
Originally Posted by Edris335i View Post
Anyone able to help me out? Getting a boost leak from god knows where. I've replaced my boost solenoids, tightened the rear actuator rod, upgraded chargepipe and bov, upgraded fmic, redid all vacuum lines. I've been consistently getting it whenever I shift from 3rd to 4th after a pull or if I enter boost on the highway past 90ish mph. Any help is appreciated.

https://datazap.me/u/edris335i/boost...=0&data=3-5-22
I had that issues a couple years back. It would only happen during the top end and was driving me nuts. After doing my due diligence and going over everything it turns out my chargepipe o-ring was missing. Go figure!
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      10-06-2018, 01:46 AM   #11679
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Quote:
Originally Posted by !LEFTCOAST! View Post
I had that issues a couple years back. It would only happen during the top end and was driving me nuts. After doing my due diligence and going over everything it turns out my chargepipe o-ring was missing. Go figure!
Really? I remember moving my chargepipe o-ring but i'll doublecheck it tomorrow just to be sure. Thank you!
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      10-06-2018, 04:17 AM   #11680
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Quote:
Originally Posted by Edris335i View Post
Really? I remember moving my chargepipe o-ring but i'll doublecheck it tomorrow just to be sure. Thank you!
Have a smoke test performed by a garage/mechanic. We can't tell you what's wrong from 1000 miles away.
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      10-06-2018, 04:29 AM   #11681
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Quote:
Originally Posted by Betmenas View Post
Hi, could anyone have a look at my log? I initially posted it to the "take a look at my log thread" but have got no response so I am trying it here.

I ran it on MHD V8 E30 Stage 2+ map. Is my car up to it? I have stock LPFP with no upgrades so I am not sure whether the fuel supply is good enough. To me it seems that something may not be right with boost as it is always under target. There may be other issues, though, that more experienced of you will be able to identify.

https://datazap.me/u/taduxiss/log-15...og=0&data=3-22
Check for a boost leak. Have a smoke test performed if you are not sure. Don't push it anymore. Fix the leak first. You are stressing your turbo's hard (high wgdc) right now to be able to make some power.
Your fuel supply is fine but i wouldn't go much higher. When your boost leak is fixed it will probably like some more fuel.
IAT is a problem. Looks like it's fine for 1 gear but on multi gear pulls you will go over the acceptable temperatures. Upgrade intercooler. Try the Phoenix ones from Burger.
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      10-06-2018, 05:08 PM   #11682
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Quote:
Originally Posted by thelightning View Post
Check for a boost leak. Have a smoke test performed if you are not sure. Don't push it anymore. Fix the leak first. You are stressing your turbo's hard (high wgdc) right now to be able to make some power.
Your fuel supply is fine but i wouldn't go much higher. When your boost leak is fixed it will probably like some more fuel.
IAT is a problem. Looks like it's fine for 1 gear but on multi gear pulls you will go over the acceptable temperatures. Upgrade intercooler. Try the Phoenix ones from Burger.
I just put in the 7" VRSF FMIC last week. I will stop pushing the car and try to do a smoke test or test the intake tract with an air compressor.
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