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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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      05-02-2011, 10:26 AM   #1299
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This is news to me people feeling throttle closure.

The giac log does not have a pull through 4k rpms were closures occur.
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      05-02-2011, 10:33 AM   #1300
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Quote:
Originally Posted by Alan l. View Post
If the closure is severe enough where you can feel it, wouldn't this definitely be picked up on the dyno?
Possibly. I do not know. I've not taken my car to a dyno yet.
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      05-02-2011, 10:45 AM   #1301
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Quote:
Originally Posted by FlyLow335i View Post
Without staring at a boost gauge or logging you wouldn't know if you had throttle closures. You can NOT feel the throttle closure that people are getting with the AP. It is maintaining a linear load curve and power output stays linear throughout as a result. I do agree that I would like to not have the blip of closure though. I would rather just get ATR out so I can do it myself lol
You can DEFINITELY feel throttle closure. In the early maps, it would feel as though the car literally stutters through a pull - the graph would show a massive flapping of the throttle, as well.
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      05-02-2011, 10:46 AM   #1302
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In my car I get throttle closure and you can't feel a thing.
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      05-02-2011, 10:50 AM   #1303
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The only giac log I saw was Mr.5s and it had timing drops. Where are all these giac logs?
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      05-02-2011, 10:50 AM   #1304
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Flylow335i

^^ Same here. I'll try to get some more logs this weekend to see how it feels on the 202 map. I actually switched down to 201 because i feel like 202 doesn't have as much power in the lower rpms.
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      05-02-2011, 10:55 AM   #1305
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Quote:
Originally Posted by Alan l. View Post
Flylow335i

^^ Same here. I'll try to get some more logs this weekend to see how it feels on the 202 map. I actually switched down to 201 because i feel like 202 doesn't have as much power in the lower rpms.
ill be going to the track again tomorrow. Last time I tested 200 and 201 which resulted in 112 and 111 traps. This time ill go on 202 to see if there's any difference. Seat of the pants says no though lol
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      05-02-2011, 11:01 AM   #1306
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I think its a safe bet at the track they will probably perform about the same. Its part throttle driving that is where the biggest change occurs. To me 202 (regular) feels almost stock unless you give it more throttle input.

Alan
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      05-02-2011, 11:09 AM   #1307
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Quote:
Originally Posted by Alan l. View Post
To me 202 (regular) feels almost stock unless you give it more throttle input.

Alan
That's really weird. To me 2.02 (regular) is the most aggressive map yet! The 2.02 v2 map feels mostly stock till I put my foot all the way down.

I wonder if there has been some sort of a cock-up in the map naming from Cobb... A lot of people are reporting different things about 2.02 std and v1, v2 variants.
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      05-02-2011, 11:09 AM   #1308
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Quote:
Originally Posted by mithiral67 View Post
The giac log does not have a pull through 4k rpms were closures occur.
Here is a load dyno (Mustang) run in 4th gear from 1000RPM with GIAC S2
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      05-03-2011, 12:11 AM   #1309
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Quote:
Originally Posted by vasillalov View Post
That's really weird. To me 2.02 (regular) is the most aggressive map yet! The 2.02 v2 map feels mostly stock till I put my foot all the way down.

I wonder if there has been some sort of a cock-up in the map naming from Cobb... A lot of people are reporting different things about 2.02 std and v1, v2 variants.

+1 on the 2.02 v2 Map. I actually really like this map (initially I hated it), it's not jerky in 1st, 2nd gear when you give it a bit too much gas. The power seems quite linear to the accelerator pedal position. When I want full power, I peg it, and it's there RIGHT AWAY. For day to day driving, I'm actually seeing some drastic reductions in fuel consumption.
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      05-06-2011, 10:02 AM   #1310
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what's these 2 codes??? I know the top code is normal but what's the 2nd code ??

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      05-06-2011, 10:11 AM   #1311
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^ Clear the code and check again. It's telling you your oil level is low.
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      05-06-2011, 10:13 AM   #1312
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I just cleared it and the 2nd code is gone but the top code is still there which Is normal i heard


Thx
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      05-06-2011, 10:14 AM   #1313
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Quote:
Originally Posted by O HELLA BMW View Post
I just cleared it and the 2nd code is gone but the top code is still tere which I'd normal i heard


Thx
Same exact thing happened to me when I reinstalled my AP last night. (And I just had my oil changed.)

Yes, first code is normal...enjoy the ride!!!
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      05-08-2011, 01:25 PM   #1314
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so i was cruising today for about an hour with a high of 69 today and all the sudden i get a ENGINE MALFUNCTION REDUCE POWER on my nav screen. so i said WTF? i pulled over and selected TROUBLESHOOTING on my COBB and it had these codes


and then after i cleared those codes, then these codes popped up below?!!?!?


so i UNINSTALLED cobb and i now have a SES light on my dashboard???? now will that go away after a day? or should i take my car to the dealer?
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      05-08-2011, 01:30 PM   #1315
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http://www.e90post.com/forums/showthread.php?t=406427
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      05-08-2011, 01:37 PM   #1316
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^thanks!

so i guess i should go to the dealership then?, when i uninstalled my COBB there wasnt any codes but i have a SES light on.
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      05-08-2011, 04:06 PM   #1317
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Quote:
Originally Posted by Pseudo Nim View Post
You can DEFINITELY feel throttle closure. In the early maps, it would feel as though the car literally stutters through a pull - the graph would show a massive flapping of the throttle, as well.
Thats what I am experiencing also (2.02 std, 6MT), a stutter and a then vibration when floored in higher gears, then the power smoothes out and the car goes. The power and smoothness are there with this tune but these issues concern me.
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      05-08-2011, 04:58 PM   #1318
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Quote:
Originally Posted by O HELLA BMW View Post
^thanks!

so i guess i should go to the dealership then?, when i uninstalled my COBB there wasnt any codes but i have a SES light on.


Find somebody with a BT Scanner (or buy one if you didn't already) and scan/clear any codes (as well as shadow fault codes) before dealer visit.

Every time I uninstall the AP, it leaves a SES light on the dash, and a usually a slew of fault codes. These codes did NOT show up on the AP for some reason:

5E19 - DSC: Engine management interface

D357 - DSC: No Message (gearbox 186)
D356 - DSC: No Message (engine 170)
D355 - DSC: No Message (engine 169)
D354 - DSC: No Message (engine 168)

I'm pretty sure it has something to do with re-coding of the DSC system (when it gets re-flashed back to stock).
One of the codes (I forget which one) would not clear, so I had to wait for the car to go into sleep mode, then reset adaptions on one of the controllers (instructions in the Bavarian Technic wiki)

Not saying anything negative about COBB or any tuning company, but just shows that it's a very good idea (I would say mandatory) to have a BT scan cable + netbook/laptop available at all times.
I would personally never rely solely on tunes to view/clear codes.

...my 2
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      05-08-2011, 11:25 PM   #1319
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Quote:
Originally Posted by MicaCeli View Post
Highlight the code with the ap and it will give you the descrition of the error.
I highlighted the P2F71 code with the AP and it was labeled "e-box fan control".

Any ideas?
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      05-09-2011, 08:07 PM   #1320
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so i uninstalled the cobb ap last night and i used the ap to clear the SES light and it went away but my car doesnt seem to get any boost. is it b/c i was so used to the POWER of the cobb and my car just feels slow?

when i hit my auto stick to the left into DS mode my car seems to accelerate normally but when i just drive in automatic mode my car seems to struggle to accelerate ??
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