Overboosting

yawn · 07-11-2015, 04:09 AM

Hi all - so I've been having this overboost issue for awhile now and cannot for the life of me figure out what is causing it. It only pops up during very spirited driving (think race track) with repeated wot and heavy braking. After 5 minutes of this sort of driving, 30FE and 3100 pop up on my code reader. Power loss, etc etc... If I immediately turn the car off and on, it will run normally, but as soon as I give it wot, the code pops up again. However, if I turn the car off and give it time to cool down (5-10 minutes of inactivity) and then start her up and start driving on the track, it takes longer for the code to pop up. This leads me to believe it is a heat issue. I'm wondering if my wastegates are sticking shut and not dumping boost? And therefore I need new turbos?

I managed to take a log of it when it happened mid run. Hoping someone who can read this data can shed some light. Thanks all. It's datalog26 which is the run that had the error occur. 25 and 24 were ok.

http://datazap.me/u/sharkatron/log-1...2&data=7-12-20

Nearly forgot too - car is running a tune, I've recently changed all the vacuum lines, got forge dvs, ER chargepipe, IC, dps.

dsocold · 07-11-2015, 06:12 AM

did you check to make sure all of your connections are good for the intercooler piping and charge pipe and so on.

yawn · 07-11-2015, 06:28 AM

Quote:

Originally Posted by dsocold

did you check to make sure all of your connections are good for the intercooler piping and charge pipe and so on.

All good there. Even if it weren't, I would think you would get underboost (30FF) rather than overboost (30FE)?

Ginger_Extract · 07-13-2015, 01:39 PM

I have the same issue at the track when I run Map 0/4 on JB4. It's intermittent, no obvious issues with the car. Hoping you find the answer. If you do, please let me know!

yawn · 07-15-2015, 12:18 AM

Have you tried taking the tune off to make sure it is not tune related? I have with mine and it is still happening! Frustrating...

darkrom · 07-15-2015, 01:02 PM

What tune are you running? MHD just released an update today that addresses this issue.

yawn · 07-16-2015, 05:44 AM

Quote:

Originally Posted by darkrom

What tune are you running? MHD just released an update today that addresses this issue.

I'm wondering if my issue is even tune related. When I return the car to stock tune it still happens.

darkrom · 07-16-2015, 06:13 AM

Quote:

Originally Posted by sharkatron

I'm wondering if my issue is even tune related. When I return the car to stock tune it still happens.

Well didn't you just answer your own question? With a fully stock tune and it still happening, if must be a physical issue.

yawn · 07-16-2015, 08:21 AM

Quote:

Originally Posted by darkrom

Well didn't you just answer your own question? With a fully stock tune and it still happening, if must be a physical issue.

Are you referring to heat related sticky wastegates? That stick shut when hot and fail to dump boost?

Just need confirmation... thanks.

f3adm · 05-18-2016, 05:49 AM

Did you get this sorted mate?

07-11-2015, 04:09 AM	#1
yawn Lieutenant 57 Rep 552 Posts Drives: M2 Competition Join Date: Mar 2012 Location: Home iTrader: (0)	Overboosting - 30FE Hi all - so I've been having this overboost issue for awhile now and cannot for the life of me figure out what is causing it. It only pops up during very spirited driving (think race track) with repeated wot and heavy braking. After 5 minutes of this sort of driving, 30FE and 3100 pop up on my code reader. Power loss, etc etc... If I immediately turn the car off and on, it will run normally, but as soon as I give it wot, the code pops up again. However, if I turn the car off and give it time to cool down (5-10 minutes of inactivity) and then start her up and start driving on the track, it takes longer for the code to pop up. This leads me to believe it is a heat issue. I'm wondering if my wastegates are sticking shut and not dumping boost? And therefore I need new turbos? I managed to take a log of it when it happened mid run. Hoping someone who can read this data can shed some light. Thanks all. It's datalog26 which is the run that had the error occur. 25 and 24 were ok. http://datazap.me/u/sharkatron/log-1...2&data=7-12-20 Nearly forgot too - car is running a tune, I've recently changed all the vacuum lines, got forge dvs, ER chargepipe, IC, dps.
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07-11-2015, 06:12 AM	#2
dsocold Captain 198 Rep 684 Posts Drives: f06 640i GC. E82 N54 135i Join Date: Apr 2015 Location: new york iTrader: (0)	did you check to make sure all of your connections are good for the intercooler piping and charge pipe and so on.
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07-13-2015, 01:39 PM	#4
Ginger_Extract California-bound 385 Rep 1,480 Posts Drives: BMW 135i Join Date: Jan 2013 Location: Los Angeles, CA iTrader: (3)	I have the same issue at the track when I run Map 0/4 on JB4. It's intermittent, no obvious issues with the car. Hoping you find the answer. If you do, please let me know! __________________ Streets of Willow: 1:27.7 CW 11/15/15; 1:29.5 CCW 8/15/15 \|\|\|\| Autoclub Speedway ROVAL (CCW): 1.52.6 - 12/2/17 Willow Springs - Big Willow (CW): 1:35.8 - 3/31/18 \|\|\|\| Buttonwillow #13 (CW): 1:59.3 1/27/18 https://www.facebook.com/JakeStumphRacing \|\|\|\| http://www.youtube.com/user/RaceMeMZ3
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07-15-2015, 12:18 AM	#5
yawn Lieutenant 57 Rep 552 Posts Drives: M2 Competition Join Date: Mar 2012 Location: Home iTrader: (0)	Have you tried taking the tune off to make sure it is not tune related? I have with mine and it is still happening! Frustrating...
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07-15-2015, 01:02 PM	#6
darkrom Colonel 188 Rep 2,225 Posts Drives: 135i Join Date: Feb 2011 Location: Rhode Island iTrader: (5)	What tune are you running? MHD just released an update today that addresses this issue.
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05-18-2016, 05:49 AM	#10
f3adm Second Lieutenant 38 Rep 261 Posts Drives: E92 335i Sapphire Black Join Date: Oct 2014 Location: North West UK iTrader: (0)	Did you get this sorted mate?
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