low boost after downpipe install??

Solid · 03-18-2011, 02:29 PM

posted this on 1addicts, but i need all the info i can get..
http://www.1addicts.com/forums/showt...56#post9158056

i just had my catted downpipes installed (AR) and now my car won't boost over 8psi (i have giac s1).

i also installed the bms dci intakes and made sure the piping weren't shoved in too far etc. install looks fine...

there aren't any loose hose clamps that i can see... so i did some research and it seems like the wastegate arm could be hitting some v-clamp that wasn't positioned correctly when the downpipes were installed?

does anyone have a picture of how it SHOULD look? also, will driving like this damage my wastegate or anything related? i've been driving the car for about a day or so like this, and floored it a few times...

i didn't get the check engine light until it floored it, then i got the following codes:
MSD80/MSD81 Engine module for N53/N54
Module Identification

Hardware Number 7604567
Hardware Vesion Number 00
Coding Index 17
DiagnosticIndex 0000
VariantIndex 4131
Date of ECU Manufacturing 20090910
System Supplier Siemens
Message Catalog Version 255.255.255
Software Version 0.0.0
OS Version 0.0.0

Current Fault Codes

2E8D:
2E8D Intelligent battery sensor, signal transmission
Error will not cause a warning light
Error is currently present
Test conditions have been completed
Short circuit or signal interruption

Freeze Frame Information
Event 1
Odometer 24896kms 15469miles
status motor control 0.00 0-n
ambient temperature -48.00 °C
battery voltage measured by IBS intelligent battery sensor 6.00 -
voltage Kl. 87 0.00 V
Event 2
Odometer 24904kms 15474miles
status motor control 6.00 0-n
ambient temperature 9.00 °C
battery voltage measured by IBS intelligent battery sensor 11.76 -
voltage Kl. 87 0.00 V
Event 3
Odometer 27160kms 16876miles
status motor control 2.00 0-n
ambient temperature 9.75 °C
battery voltage measured by IBS intelligent battery sensor 13.87 -
voltage Kl. 87 13.81 V

2AAF:
2AAF Fuel pump, plausibility
Error will not cause a warning light
Error is not currently present
Test conditions have been completed
Short circuit or signal interruption

Freeze Frame Information
Event 1
Odometer 25376kms 15767miles
fuel pressure before mass control valve 0.00 hPa
Engine speed 0.00 rpm
voltage Kl. 87 0.00 V
injected mass of fuel 0.00 l/h
Event 2
Odometer 25568kms 15887miles
fuel pressure before mass control valve 5,816.16 hPa
Engine speed 2,560.00 rpm
voltage Kl. 87 13.00 V
injected mass of fuel 0.00 l/h
Event 3
Odometer 27128kms 16856miles
fuel pressure before mass control valve 5,816.16 hPa
Engine speed 4,576.00 rpm
voltage Kl. 87 13.51 V
injected mass of fuel 0.00 l/h

2F9E:
2F9E Thermic oil level sensor
Error will not cause a warning light
Error is not currently present
Test conditions have been completed
Signal or value below threshold

Freeze Frame Information
Event 1
Odometer 26160kms 16255miles
Engine speed 0.00 rpm
control unit inside temperature 21.75 °C
voltage Kl. 87 13.71 V
status motor control 2.00 0-n
Event 2
Odometer 26200kms 16279miles
Engine speed 2,048.00 rpm
control unit inside temperature 21.75 °C
voltage Kl. 87 13.41 V
status motor control 2.00 0-n

2DC3:
2DC3 Control clamp 15
Error will not cause a warning light
Error is not currently present
Test conditions have been completed
Timeout

Freeze Frame Information
Event 1
Odometer 26288kms 16334miles
Engine speed 0.00 rpm
motor status 0.00 0-n
voltage Kl. 87 12.19 V
status motor control 4.00 0-n

30FF:
30FF Turbocharger, charge-air pressure too low
Error will not cause a warning light
Error is not currently present
Test conditions have been completed

Freeze Frame Information
Event 1
Odometer 27128kms 16856miles
ambient pressure 0.00 hPa
ambient temperature 11.25 °C
pressure in front of throttle valve 160.00 kPa
speed 5,376.00 rpm
Event 2
Odometer 27128kms 16856miles
ambient pressure 997.66 hPa
ambient temperature 11.25 °C
pressure in front of throttle valve 156.00 kPa
speed 5,632.00 rpm

mke135i · 04-22-2011, 10:40 PM

Bumping this as I now have the same problem. Just got my catless downpipes installed and car won't boost past 7-8 psi. I have a v5 procede installed, and was fine before. The shop that did the install told me they checked around the connections of the downpipes and didn't feel any leak. Is there anything I have to reset on the procede?. I have not thrown any codes after driving the car hard for around 60 miles, but I'm wondering if the procede is clearing them. Also the car sounds very loud, almost like when running the NA map. I didn't expect the downpipes to make that big a difference in noise.

cn555ic · 04-22-2011, 10:56 PM

The v-clamps are positions wrong and no allow the wastegates to function properly...Have shop adjust the clamps and you should be fine...This is your problem

mke135i · 04-22-2011, 11:02 PM

Shouldn't I be getting an SES light though or is the procede clearing it?
The shop that did the work is closed until Monday, and I need to drive back home (150 miles). Will this damage anything else? I could probably check it myself, but I have no tools where I'm at right now

M3 Eater · 04-22-2011, 11:32 PM

Question... does the actuator on the rear turbo push forward. I moved it through what seems to be a full range of motion and it only moves back??? If this is the case, how can a v band clamp (bolt) prevent the actuator from moveing? The reason that I ask is that I have an issue with being undertarget at high boost applications. Its been a while since I boosted over 16 but now I have an innercooler and meth and so I know the car can handle the boost... upto 20 if I felt the need. I have seen boost this high on my car but not since I switched to JB4. I have posts all over asking for help with a boost leak but I don't seem to be leaking boost from anywhere, externally. I have even changed my intake manifold gaskets trying to find a reason to lose boost over 15.5 psi. Blah Blah Blah...

Does the actuator need to move toward the front of the car??...in the direction of the vband clamp? or as long as its not hung up in the bolt, keeping it from moving backward, is it ok?

Solid · 04-23-2011, 01:23 AM

yup that was my prob

Quote:

Originally Posted by cn555ic

The v-clamps are positions wrong and no allow the wastegates to function properly...Have shop adjust the clamps and you should be fine...This is your problem

kiteboy · 06-08-2011, 05:46 PM

Quote:

Originally Posted by cn555ic

The v-clamps are positions wrong and no allow the wastegates to function properly...Have shop adjust the clamps and you should be fine...This is your problem

What is exactly v-clamps that you means ? i'm from france and i'm don't understand very well ??

03-18-2011, 02:29 PM	#1
Solid New Member 5 Rep 24 Posts Drives: `10 135i Join Date: May 2005 Location: Seattle, WA iTrader: (0)	low boost after downpipe install?? posted this on 1addicts, but i need all the info i can get.. http://www.1addicts.com/forums/showt...56#post9158056 i just had my catted downpipes installed (AR) and now my car won't boost over 8psi (i have giac s1). i also installed the bms dci intakes and made sure the piping weren't shoved in too far etc. install looks fine... there aren't any loose hose clamps that i can see... so i did some research and it seems like the wastegate arm could be hitting some v-clamp that wasn't positioned correctly when the downpipes were installed? does anyone have a picture of how it SHOULD look? also, will driving like this damage my wastegate or anything related? i've been driving the car for about a day or so like this, and floored it a few times... i didn't get the check engine light until it floored it, then i got the following codes: MSD80/MSD81 Engine module for N53/N54 Module Identification Hardware Number 7604567 Hardware Vesion Number 00 Coding Index 17 DiagnosticIndex 0000 VariantIndex 4131 Date of ECU Manufacturing 20090910 System Supplier Siemens Message Catalog Version 255.255.255 Software Version 0.0.0 OS Version 0.0.0 Current Fault Codes 2E8D: 2E8D Intelligent battery sensor, signal transmission Error will not cause a warning light Error is currently present Test conditions have been completed Short circuit or signal interruption Freeze Frame Information Event 1 Odometer 24896kms 15469miles status motor control 0.00 0-n ambient temperature -48.00 °C battery voltage measured by IBS intelligent battery sensor 6.00 - voltage Kl. 87 0.00 V Event 2 Odometer 24904kms 15474miles status motor control 6.00 0-n ambient temperature 9.00 °C battery voltage measured by IBS intelligent battery sensor 11.76 - voltage Kl. 87 0.00 V Event 3 Odometer 27160kms 16876miles status motor control 2.00 0-n ambient temperature 9.75 °C battery voltage measured by IBS intelligent battery sensor 13.87 - voltage Kl. 87 13.81 V 2AAF: 2AAF Fuel pump, plausibility Error will not cause a warning light Error is not currently present Test conditions have been completed Short circuit or signal interruption Freeze Frame Information Event 1 Odometer 25376kms 15767miles fuel pressure before mass control valve 0.00 hPa Engine speed 0.00 rpm voltage Kl. 87 0.00 V injected mass of fuel 0.00 l/h Event 2 Odometer 25568kms 15887miles fuel pressure before mass control valve 5,816.16 hPa Engine speed 2,560.00 rpm voltage Kl. 87 13.00 V injected mass of fuel 0.00 l/h Event 3 Odometer 27128kms 16856miles fuel pressure before mass control valve 5,816.16 hPa Engine speed 4,576.00 rpm voltage Kl. 87 13.51 V injected mass of fuel 0.00 l/h 2F9E: 2F9E Thermic oil level sensor Error will not cause a warning light Error is not currently present Test conditions have been completed Signal or value below threshold Freeze Frame Information Event 1 Odometer 26160kms 16255miles Engine speed 0.00 rpm control unit inside temperature 21.75 °C voltage Kl. 87 13.71 V status motor control 2.00 0-n Event 2 Odometer 26200kms 16279miles Engine speed 2,048.00 rpm control unit inside temperature 21.75 °C voltage Kl. 87 13.41 V status motor control 2.00 0-n 2DC3: 2DC3 Control clamp 15 Error will not cause a warning light Error is not currently present Test conditions have been completed Timeout Freeze Frame Information Event 1 Odometer 26288kms 16334miles Engine speed 0.00 rpm motor status 0.00 0-n voltage Kl. 87 12.19 V status motor control 4.00 0-n 30FF: 30FF Turbocharger, charge-air pressure too low Error will not cause a warning light Error is not currently present Test conditions have been completed Freeze Frame Information Event 1 Odometer 27128kms 16856miles ambient pressure 0.00 hPa ambient temperature 11.25 °C pressure in front of throttle valve 160.00 kPa speed 5,376.00 rpm Event 2 Odometer 27128kms 16856miles ambient pressure 997.66 hPa ambient temperature 11.25 °C pressure in front of throttle valve 156.00 kPa speed 5,632.00 rpm __________________ http://www.cardomain.com/id/srsolid
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04-22-2011, 10:40 PM	#2
mke135i Lieutenant 19 Rep 436 Posts Drives: 2008 BMW 135i Cabrio Join Date: Oct 2010 Location: Midwest iTrader: (3) Garage List 2008 135i [0.00]	Bumping this as I now have the same problem. Just got my catless downpipes installed and car won't boost past 7-8 psi. I have a v5 procede installed, and was fine before. The shop that did the install told me they checked around the connections of the downpipes and didn't feel any leak. Is there anything I have to reset on the procede?. I have not thrown any codes after driving the car hard for around 60 miles, but I'm wondering if the procede is clearing them. Also the car sounds very loud, almost like when running the NA map. I didn't expect the downpipes to make that big a difference in noise.
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04-22-2011, 10:56 PM	#3
cn555ic 469 Rep 18,331 Posts Drives: 335i Join Date: Jun 2007 Location: US iTrader: (6)	The v-clamps are positions wrong and no allow the wastegates to function properly...Have shop adjust the clamps and you should be fine...This is your problem
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04-22-2011, 11:02 PM	#4
mke135i Lieutenant 19 Rep 436 Posts Drives: 2008 BMW 135i Cabrio Join Date: Oct 2010 Location: Midwest iTrader: (3) Garage List 2008 135i [0.00]	Shouldn't I be getting an SES light though or is the procede clearing it? The shop that did the work is closed until Monday, and I need to drive back home (150 miles). Will this damage anything else? I could probably check it myself, but I have no tools where I'm at right now
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04-22-2011, 11:32 PM	#5
M3 Eater Major 36 Rep 1,054 Posts Drives: 335i Sedan Join Date: May 2010 Location: Unknown iTrader: (3) Garage List 2007 335i [0.00]	V band clamp positioning... Question... does the actuator on the rear turbo push forward. I moved it through what seems to be a full range of motion and it only moves back??? If this is the case, how can a v band clamp (bolt) prevent the actuator from moveing? The reason that I ask is that I have an issue with being undertarget at high boost applications. Its been a while since I boosted over 16 but now I have an innercooler and meth and so I know the car can handle the boost... upto 20 if I felt the need. I have seen boost this high on my car but not since I switched to JB4. I have posts all over asking for help with a boost leak but I don't seem to be leaking boost from anywhere, externally. I have even changed my intake manifold gaskets trying to find a reason to lose boost over 15.5 psi. Blah Blah Blah... Does the actuator need to move toward the front of the car??...in the direction of the vband clamp? or as long as its not hung up in the bolt, keeping it from moving backward, is it ok? __________________ JB4 beta 15 ohms FSB,AEM inline filter/ CM 10, ETS fmic, ER custom made charge pipe,TSW Donnington 18's,Simitumo HTRZ3, Injen DCI, AR DPs, Forge DVs, AA SLD, Koni FSD, ZSP springs. Last edited by M3 Eater; 04-22-2011 at 11:54 PM..
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