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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 > All COBB Tuning AccessPORT Flash for N54 335i Discussion Here



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      02-21-2012, 01:50 PM   #3917
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Quote:
Originally Posted by 2Times View Post
Quick question... I know some other piggy backs can control meth, what do the Cobb guys do to keep everything safe?
Cobb doesn't feature meth integration. However, any of the quality meth kits will either come with or can integrate a failsafe. Right now, there's no real reason to run meth on any of Cobbs publicly available off the shelf maps.
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      02-21-2012, 01:53 PM   #3918
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Originally Posted by 2Times View Post
I'll do that, I did a couple 3rd gear pulls on the way to work and no timing was pulled today... interesting. During lunch I'll do the 3rd into 4th gear and post that.
If the logs where you pulled timing were taken immediately after switching maps or flashing to stage 1 then that would explain the timing pulls. The DME needs a little time to adapt to the tune and after a little driving it smooths out.
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      02-21-2012, 01:57 PM   #3919
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Originally Posted by rader1 View Post
If the logs where you pulled timing were taken immediately after switching maps or flashing to stage 1 then that would explain the timing pulls. The DME needs a little time to adapt to the tune and after a little driving it smooths out.
That must have been it. I just switched between stg1 stock throttle to stg1 linear and did the logging just after that. That's a good to know.
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      02-21-2012, 02:47 PM   #3920
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Quick question: There's the option in the Access Port to reset the ECU adaptations. Does it do that automatically each time another map is selected, or is it necessary to explicitly do it by selecting this option in the AP menu?

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      02-21-2012, 02:47 PM   #3921
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Even though BMW AccessTUNER Pro hasn't been "officially" announced yet (hint: VERY soon ), the tuning guide can be downloaded and viewed to give you an exact idea of what the software can do and how to tune the N54 motor using AccessTUNER.

Ian
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      02-21-2012, 02:57 PM   #3922
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Quote:
Originally Posted by COBB Tuning View Post
Even though BMW AccessTUNER Pro hasn't been "officially" announced yet (hint: VERY soon ), the tuning guide can be downloaded and viewed to give you an exact idea of what the software can do and how to tune the N54 motor using AccessTUNER.

Ian
Would you mind answering the question I asked earlier on (see below) in this respect?

I observed that when running stage 2 + FMIC aggressive in extremely low temperatures (up to minus 10 degrees Celsius), the car was also boosting up to 18.5psi which - if it was load targeting only - it would not have done, as the load target would then be so high that under normal summer temperatures you would need more than 22psi to reach it (which is impossible with the stock turbos).

Therefor, the mechanics at least of the stage 2 maps is not based on load targeting only but also on boost targeting (which I believe in another thread was already confirmed when I ask the same question). However, the manual available on your website for the Access Tuner Pro only mentions load targeting...

In particular in view of maps for bigger turbos I think that is quite an important distinction.

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      02-21-2012, 04:36 PM   #3923
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Quote:
Originally Posted by Alpina_B3_Lux View Post
Would you mind answering the question I asked earlier on (see below) in this respect?

I observed that when running stage 2 + FMIC aggressive in extremely low temperatures (up to minus 10 degrees Celsius), the car was also boosting up to 18.5psi which - if it was load targeting only - it would not have done, as the load target would then be so high that under normal summer temperatures you would need more than 22psi to reach it (which is impossible with the stock turbos).

Therefor, the mechanics at least of the stage 2 maps is not based on load targeting only but also on boost targeting (which I believe in another thread was already confirmed when I ask the same question). However, the manual available on your website for the Access Tuner Pro only mentions load targeting...

In particular in view of maps for bigger turbos I think that is quite an important distinction.

Alpina_B3_Lux
I've been paying attention to this load/boost topic. Perhaps it is at a limit / ceiling value in both scenarios... do you have more than reported peak boost values available to support the departure from the load based tuning strategy? I know for Stg1 I run 2-3psi less in 30 degree F weather than 80 degree F weather (rel humidity also impacts things). I've logged and graphed, the boost curves over RPM are identical but roughly offset by 2 psi. I'm also interested why/how this isn't the case for Stg2 mapping.
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      02-21-2012, 04:43 PM   #3924
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Problem solved. Thanks Chris and Shayne @ Cobb Techsupport.

They fixed a new AP Manager software release for me.
Update AP -> Recover -> Uninstall -> Install

The car now moves like a monster. :-)
Cheers from Sweden



Quote:
Originally Posted by johej View Post
Hi.
I ran into some problems today.

I intended to flash my 335i with a Stage 1 aggressive map with my new Cobb Accessport.
I have already mailed Cobb about it but I am afraid that it may take serveral days to get an answer since it is saturday morning in USA now.

Anyway.
The AccessPort stops flashing the car at 46%, saying something about communication error and tells me to check the cable and try again.
I have tried 4 times now. Same problem.

These are all the details about what that happened:

I updated the AP to the latest beta. It might have been 3440.
Ignition on. Plugged in to car.
The AP saved the original ECU.
Start flashing Stage 1, aggressive map.

Some error codes show up on the onboard car screen:
DTC fault
Tyre preassure fault.

The fuel pump starts, and is on, all the time.

Flashing starts, but fails after 46%.
After total of 4 tries, I give up.
Now the onboard car screen says Fuel Pump Error or something.


Does this sound familiar to anyone?
Is there any quick and good solution to this?
Thanks
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      02-21-2012, 05:07 PM   #3925
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Status on the updates please?
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      02-21-2012, 05:26 PM   #3926
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Quote:
Originally Posted by Sal G@Camber-Toe View Post
Status on the updates please?
can you please stop asking for an update twice per page?

V400 are nice, be patient, soon they are releasing it , its not gonna make it faster asking the same over and over again....
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      02-21-2012, 05:30 PM   #3927
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Quote:
Originally Posted by enrita View Post
can you please stop asking for an update twice per page?

V400 are nice, be patient, soon they are releasing it , its not gonna make it faster asking the same over and over again....
Oh nice... you're already testing v400?

And this hasn't been brought up in a little while, but today I tried the linear map for Stg2+FMIC and, despite what seems to be the general consensus, I actually like it a LOT LOT LOT better than the stock throttle map... the stock throttle map felt like an on/off switch with the power and I would lose traction every time in 1st, 2nd, and in 3rd I'd either lose traction or the clutch would slip completely.

Might be the way I drive, though... I am coming from Dinan Stage 2, which I now believe is a more linear throttle map as well... so could be that I'm just used to that...

My main point, though, is that everyone should try both stock throttle and linear throttle maps despite what is most popular based on these threads... =P 2cents

edit: OH... and if you look in my sig, the guys over at VAC Motorsports in Philly are doing a REDICULOUS group buy for the Quaife LSD, which I've found (the hard way) is absolutely necessary in these cars... check out the link below... it's seriously a once-in-a-lifetime price... and I can attest for the work VAC does... this is their specialty... they're building mine right now... =P
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      02-22-2012, 12:38 AM   #3928
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Quote:
Originally Posted by enrita View Post
can you please stop asking for an update twice per page?

V400 are nice, be patient, soon they are releasing it , its not gonna make it faster asking the same over and over again....
Maybe you dont care as much since you have the update already? but the rest with stuttering cars would at least like a status on it since theres only 1 post from them every # of pages

Last edited by Sal G@Camber-Toe; 02-22-2012 at 12:45 AM.
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      02-22-2012, 04:02 AM   #3929
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Quote:
Originally Posted by Sal G@Camber-Toe View Post
Maybe you dont care as much since you have the update already? but the rest with stuttering cars would at least like a status on it since theres only 1 post from them every # of pages
Yeah, but the point is that they will release it when it's ready, and will certainly announce it big time as they've done with all other revisions in the past. Asking for it every five minutes will just clutter up the thread and will not achieve anything else.

I'd prefer they work on the maps rather than spending time on the forum, but that's just me. And if you really want to know, you can always call them.

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      02-22-2012, 05:13 AM   #3930
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Quote:
Originally Posted by Alpina_B3_Lux View Post
Yeah, but the point is that they will release it when it's ready, and will certainly announce it big time as they've done with all other revisions in the past. Asking for it every five minutes will just clutter up the thread and will not achieve anything else.

I'd prefer they work on the maps rather than spending time on the forum, but that's just me. And if you really want to know, you can always call them.
I think that there is nothing wrong in people being anxious and excited for new things. Do you want to tell me that you never look at spy pictures on new cars, on new phones, new tablets, just wait for them to be released ? You don't research and read articles with scoops on different upcoming things ? It's the same here.

People will generally feel better if they are given insights on what's to come. Do you think it would hurt Cobb's trade secrets if they would say "we have hit a major roadblock and we are working on it", "we have 4 weeks of beta until release" or "we are concentrating on other plaform for 2 months" or such ? I don't think it would hurt. People would get their answers and stop asking questions.

Transparency is a good thing for a company, look at Google as a good example. Maybe it's Cobb's fault on how they manage communication and not the people who ask, which by the way, all they do is asking...
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      02-22-2012, 08:23 AM   #3931
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updates??? lol

i for one am waiting for a fix for over a month and im anxiousssssss
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      02-22-2012, 09:46 AM   #3932
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Lol i remember when people were waiting for stage 2+ maps to be released. There was like 10+ posts a day asking for updates
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      02-22-2012, 10:10 AM   #3933
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Quote:
Originally Posted by skim7x View Post
Oh nice... you're already testing v400?

And this hasn't been brought up in a little while, but today I tried the linear map for Stg2+FMIC and, despite what seems to be the general consensus, I actually like it a LOT LOT LOT better than the stock throttle map... the stock throttle map felt like an on/off switch with the power and I would lose traction every time in 1st, 2nd, and in 3rd I'd either lose traction or the clutch would slip completely.

Might be the way I drive, though... I am coming from Dinan Stage 2, which I now believe is a more linear throttle map as well... so could be that I'm just used to that...

My main point, though, is that everyone should try both stock throttle and linear throttle maps despite what is most popular based on these threads... =P 2cents

edit: OH... and if you look in my sig, the guys over at VAC Motorsports in Philly are doing a REDICULOUS group buy for the Quaife LSD, which I've found (the hard way) is absolutely necessary in these cars... check out the link below... it's seriously a once-in-a-lifetime price... and I can attest for the work VAC does... this is their specialty... they're building mine right now... =P
dont mean to thread jack...just ordered a cobb though it will be here today..im in PA and i do have access to 93 from exxon. i always put 93 in even stock..my turbos have just been replaced. i sold all my bolt ons due to warranty work and being pissed off. the bug bit me again so i bought the cobb. which map can i run safely with just pure stock car with 93oct??
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      02-22-2012, 10:20 AM   #3934
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Quote:
Originally Posted by 335(EX)(EYE) View Post
dont mean to thread jack...just ordered a cobb though it will be here today..im in PA and i do have access to 93 from exxon. i always put 93 in even stock..my turbos have just been replaced. i sold all my bolt ons due to warranty work and being pissed off. the bug bit me again so i bought the cobb. which map can i run safely with just pure stock car with 93oct??

Stage 1 Aggressive, linear or stock map.
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      02-22-2012, 10:38 AM   #3935
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Quote:
Originally Posted by BMWsky View Post
Stage 1 Aggressive, linear or stock map.
Do stock throttle map first, your car will feel slow at first on linear

I'm on linear now, took a little getting use to but I do like it.
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      02-22-2012, 10:47 AM   #3936
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Quote:
Originally Posted by BMWsky View Post
Stage 1 Aggressive, linear or stock map.
can u guys explain linear and aggresive? which will get rid of the deadpedal that i feel like i have for the first inch of pushing the pedal down?
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      02-22-2012, 10:58 AM   #3937
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Quote:
Originally Posted by 335(EX)(EYE) View Post
can u guys explain linear and aggresive? which will get rid of the deadpedal that i feel like i have for the first inch of pushing the pedal down?
Aggressive means it's for 93 octane. Linear means the throttle responce comes in gradually. Stock throttle means it comes on much stronger much sooner. I prefer stock throttle.
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      02-22-2012, 11:02 AM   #3938
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Quote:
Originally Posted by rader1 View Post
Aggressive means it's for 93 octane. Linear means the throttle responce comes in gradually. Stock throttle means it comes on much stronger much sooner. I prefer stock throttle.
so what map is it called? stage 1 agrressive stock throttle? i dont need anything else but my bmw and 93gas?
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