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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 > 3 Codes Need Help COBB AP



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      09-26-2011, 02:21 PM   #1
E90SoFlo
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3 Codes Need Help COBB AP

Already sent this to Cobb but awaiting reply, hoping you guys can help too.

Codes are as follows P2DED | P30FC | P30FF

It always throws the "engine malfunction" light after 6-10 seconds of hard acceleration. If you restart the car, everything seems fine.

Last edited by E90SoFlo; 09-26-2011 at 03:26 PM.
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      09-26-2011, 03:38 PM   #2
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Quote:
Originally Posted by E90SoFlo View Post
Already sent this to Cobb but awaiting reply, hoping you guys can help too.

Codes are as follows P2DED | P30FC | P30FF

It always throws the "engine malfunction" light after 6-10 seconds of hard acceleration. If you restart the car, everything seems fine.
What map are you running?
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      09-26-2011, 03:38 PM   #3
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Quote:
Originally Posted by E90SoFlo View Post
Already sent this to Cobb but awaiting reply, hoping you guys can help too.

Codes are as follows P2DED | P30FC | P30FF

It always throws the "engine malfunction" light after 6-10 seconds of hard acceleration. If you restart the car, everything seems fine.
did you search for them here on the forum?
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      09-26-2011, 03:44 PM   #4
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did you search for them here on the forum?
Yeah I searched Google too, and the answers where not real clear.

Running on V 301 stage 1 93 octane map.
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      09-26-2011, 05:04 PM   #5
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Hello,

I have not seen the first code before. The last two codes are suggesting a boost leak of some kind. Have you checked the pressurized side of your intake system?

Cheers,
Rob
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      09-26-2011, 06:00 PM   #6
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30FF Exhaust fume turbocharger low side
EXPLANATION: ECU boost under ECU target
FIX: Often caused by boost leaks, leaky DVs, broken vacuum lines, etc. Also possibly tuning related.
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      09-26-2011, 06:00 PM   #7
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Maybe check your vacuum hoses
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      09-26-2011, 06:14 PM   #8
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For the first code; did you leave your AP plugged into the OBDII port for a while with the car turned off? I did and it threw that code. Only the dealer can clear it.
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      09-26-2011, 08:59 PM   #9
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Quote:
Originally Posted by Rob@Cobb View Post
Hello,

I have not seen the first code before. The last two codes are suggesting a boost leak of some kind. Have you checked the pressurized side of your intake system?

Cheers,
Rob
How would I best go about checking the "pressurized" side?


Quote:
Originally Posted by momstmg78 View Post
Maybe check your vacuum hoses
trying to find it?


Quote:
Originally Posted by BMWsky View Post
For the first code; did you leave your AP plugged into the OBDII port for a while with the car turned off? I did and it threw that code. Only the dealer can clear it.
Sometimes, But It just goes into a "can't find the car" screen. My OBDII port always has the cable on it.

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      09-26-2011, 09:15 PM   #10
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If your OBDII port is drawing power for an extended period of time, you'll throw P2DED. The cable won't do it, but if you had your AP connected while the car was off for a while it'll throw the code. Not a big deal.
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      09-26-2011, 09:18 PM   #11
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Quote:
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If your OBDII port is drawing power for an extended period of time, you'll throw P2DED. The cable won't do it, but if you had your AP connected while the car was off for a while it'll throw the code. Not a big deal.
Ok NBD. The other two, I think are a big deal.
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      09-26-2011, 09:28 PM   #12
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Quote:
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Ok NBD. The other two, I think are a big deal.
Do you have an aftermarket FMIC? Also, check your diverter valves, sometimes they pop off. When you accelerate hard, do you hear the sound of blowing air under load?
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      09-26-2011, 09:37 PM   #13
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Quote:
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Do you have an aftermarket FMIC? Also, check your diverter valves, sometimes they pop off. When you accelerate hard, do you hear the sound of blowing air under load?
Im all stock other then DCI

the DV's (plastic pieces on charge pipe) are on.

And no blowing sound, other then the usual sucking noise front the DCI
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      09-26-2011, 09:43 PM   #14
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Im all stock other then DCI

the DV's (plastic pieces on charge pipe) are on.
Bummer, I was hoping it would be something obvious. Sound like you're going to have to make sure all your clamps are holding. It isn't unheard of for one of them coming loose over time.
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      09-29-2011, 03:01 PM   #15
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Trying to figure this out still.

I have contacted cobb and they started replying, asked for a few more logs and then haven't replied in the last two days, so I'm sure they're busy.

Any ideas?
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      09-29-2011, 03:36 PM   #16
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If you have over 40K miles these vac lines tend to deteriorate. You wont really know unless you see visual cracks or start replacing.

Last but not least your DV could be leaking.

Throw up logs including wastegate duty cycle here.

30FF is boost leak so its either vac lines, connections on charge pipe, or connection on TB, or leaky DV.
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      09-29-2011, 03:39 PM   #17
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I got the 30FF a couple times with Cobb. Couldn't find an obvious leak anywhere. I reloaded the map, reset the ECU and it never came back and that was Stage 1 and 4k miles ago. Ran stage 2+ without a hitch. I have no explanation for it. Maybe it's worth a try for you.
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      09-29-2011, 03:45 PM   #18
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Quote:
Originally Posted by Jeff@topgearsolutions View Post
If you have over 40K miles these vac lines tend to deteriorate. You wont really know unless you see visual cracks or start replacing.

Last but not least your DV could be leaking.

Throw up logs including wastegate duty cycle here.

30FF is boost leak so its either vac lines, connections on charge pipe, or connection on TB, or leaky DV.
What is the best way to post logs'? Im not sure of how to make them into lines like most people show on here.
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      09-29-2011, 03:51 PM   #19
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Quote:
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What is the best way to post logs'? Im not sure of how to make them into lines like most people show on here.

http://www.javalotte.com/csvgraph/
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      09-29-2011, 06:10 PM   #20
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Quote:
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trying to get this to work, i have no many options, I put the log in there, and then click x axis - wgdc bank 1 (%) and y-axis wgdc bank 1 (%) and i get a log thats going from bottom left to top right.
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      09-29-2011, 06:13 PM   #21
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not sure if this is correct.Name:  Screen Shot 2011-09-29 at 7.12.50 PM.png
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      09-29-2011, 06:18 PM   #22
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WGDC looks pretty good to me.

Mine is in the 52-55 range on stage 2+.
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