Boost Slow to Build

JStang · 05-25-2016, 01:54 PM

My boost seems really slow to build lately. See attached log and let me know what you think. Boost solenoids or boost leak? No codes at all just very slow to build.

It is worth noting that I am at 103k miles and on the original boost solenoids. Could Vanos solenoids be causing this as well? Also on the original Vanos solenoids. Should probably just go ahead and change them both out.

http://datazap.me/u/jstang/post-inje...0&data=2-14-15

Bimmer 808 · 05-25-2016, 05:05 PM

Do you have a before and after log? Maybe it's your tuner? Here's my E50 map with BuraQ. http://datazap.me/u/lumikuke/3-apr-2...10-11-12-13-24

Sgop335 · 05-25-2016, 05:37 PM

Quote:

Originally Posted by JStang

My boost seems really slow to build lately. See attached log and let me know what you think. Boost solenoids or boost leak? No codes at all just very slow to build.

It is worth noting that I am at 103k miles and on the original boost solenoids. Could Vanos solenoids be causing this as well? Also on the original Vanos solenoids. Should probably just go ahead and change them both out.

http://datazap.me/u/jstang/post-inje...0&data=2-14-15

Original turbos? Could be bs, boost leak, vacuum leak or turbos. You may get 30ff. Noticed that your wgdc doesnt go above 70.

JStang · 05-26-2016, 07:25 AM

Quote:

Originally Posted by Bimmer 808

Do you have a before and after log? Maybe it's your tuner? Here's my E50 map with BuraQ. http://datazap.me/u/lumikuke/3-apr-2...10-11-12-13-24

Don't think it's a tuner issue. I have tunes from both Dzenno and Jake and both feel sluggish.

JStang · 05-26-2016, 07:48 AM

Quote:

Originally Posted by Sgop335

Original turbos? Could be bs, boost leak, vacuum leak or turbos. You may get 30ff. Noticed that your wgdc doesnt go above 70.

Turbos are original. I will probably just start by replacing all the vacuum lines since they are original (103k miles) and go from there.

BQTuning · 05-26-2016, 08:35 AM

On just about almost all IA80S cars I have experienced similar characteristics with boost. Seems to be more prominent on cars with original turbos.

It can be tuning related ie it can be improved and adjusted in the tune. Will post couple of logs as an example when I get behind a computer

alexve90 · 05-26-2016, 10:14 AM

I have been experiencing something similar; under target until close to 4k except my wgdc is 99% leading up to it. Checked solenoids with JB4 and replaced vacuum lines, adjusted the rear actuator arm, and even disconnected catback briefly as I've read this can be due to clogged secondaries with no real difference in spool. Interested in this as well.

puppydax · 05-26-2016, 10:43 AM

I'm having issues with this once my car is fully warmed up. But then again my IAT's are around 100 something in Cali. I'm off of target by 3 psi when the turbos begin to taper, so I'm replacing my solenoids as I'm in original solenoids with 88k. Debating on removing the vac canisters as well just to play around and see what happens. Also on original turbos. 07 e92.

My Log:

http://datazap.me/u/puppydax/v4-e50?log=0&data=4-6-23

I just noticed that my boost isn't as slow to build, so I'm not sure anymore. Interested to see BuraQs advice.

BQTuning · 05-26-2016, 03:05 PM

So here is before

http://datazap.me/u/buraq/sample-bog...-99&mark=18-29

and here is after

http://datazap.me/u/buraq/sample-bog...119&mark=32-43

Still not done with it yet.......

The tuning part is the best way to check first before going to get new boost and VANOS solenoids . However though with that type of mileage I would be replacing solenoids regardless.

puppydax · 05-26-2016, 03:30 PM

Quote:

Originally Posted by BuraQ

So here is before

http://datazap.me/u/buraq/sample-bog...-99&mark=18-29

and here is after

http://datazap.me/u/buraq/sample-bog...119&mark=32-43

Still not done with it yet.......

The tuning part is the best way to check first before going to get new boost and VANOS solenoids . However though with that type of mileage I would be replacing solenoids regardless.

Yeah, my solenoids just got in today. Will be putting them in today and going for another log once it's not 90 degrees outside.

JStang · 05-26-2016, 04:24 PM

The log in the OP was from dzenno's tune. I switched to Jakes yesterday and today I got a 30ff code for the first time. was only hitting about 6 PSI so something is definitely going on. I will investigate this weekend and report back.

Sgop335 · 05-26-2016, 05:20 PM

Quote:

Originally Posted by JStang

The log in the OP was from dzenno's tune. I switched to Jakes yesterday and today I got a 30ff code for the first time. was only hitting about 6 PSI so something is definitely going on. I will investigate this weekend and report back.

103k orig turbos, more than likely wgs done. Mine were out 90k. Start w the cheap and easy stuff first.

On insoecting the old turbos, front wg needed 5 turns to close. Rear one was equally bad but i had it adjusted earlier.

V8bait · 05-26-2016, 06:42 PM

"Fixing" mechanical problems with tuning bandaids doesn't sound like fixing anything to me. And I8A0S cars naturally have more under boost problems, they are the oldest ones out there.

Sounds like you're going in the right direction though OP.

LMB335IS · 05-26-2016, 06:45 PM

Quote:

Originally Posted by JStang

My boost seems really slow to build lately. See attached log and let me know what you think. Boost solenoids or boost leak? No codes at all just very slow to build.

It is worth noting that I am at 103k miles and on the original boost solenoids. Could Vanos solenoids be causing this as well? Also on the original Vanos solenoids. Should probably just go ahead and change them both out.

http://datazap.me/u/jstang/post-inje...0&data=2-14-15

Personally I think you just need to pony up for a M4 and be done with it. Lol

JStang · 05-26-2016, 07:22 PM

Quote:

Originally Posted by LMB335IS

Quote:

Originally Posted by JStang

My boost seems really slow to build lately. See attached log and let me know what you think. Boost solenoids or boost leak? No codes at all just very slow to build.

It is worth noting that I am at 103k miles and on the original boost solenoids. Could Vanos solenoids be causing this as well? Also on the original Vanos solenoids. Should probably just go ahead and change them both out.

http://datazap.me/u/jstang/post-inje...0&data=2-14-15

Personally I think you just need to pony up for a M4 and be done with it. Lol

Still need you to convince my wife of this. She is always thinking logically. doesn't make sense to me.

LMB335IS · 05-26-2016, 07:28 PM

Quote:

Originally Posted by JStang

Quote:

Originally Posted by LMB335IS

Quote:

Originally Posted by JStang

My boost seems really slow to build lately. See attached log and let me know what you think. Boost solenoids or boost leak? No codes at all just very slow to build.

It is worth noting that I am at 103k miles and on the original boost solenoids. Could Vanos solenoids be causing this as well? Also on the original Vanos solenoids. Should probably just go ahead and change them both out.

http://datazap.me/u/jstang/post-inje...0&data=2-14-15

Personally I think you just need to pony up for a M4 and be done with it. Lol

Still need you to convince my wife of this. She is always thinking logically. doesn't make sense to me.

Lol. Isn't that the truth. I get checked more often than a hockey player

Jklad · 05-27-2016, 07:23 AM

103k on the original vacuum lines? I'll bet they are dry rotted. I'd start with those and solenoids, like you said, before looking at turdbos

JStang · 05-31-2016, 08:36 AM

I visually inspected all of the vacuum lines and didn't see any issues but I will still replace them. Boost solenoids are on order and I should have them in this weekend.

jwebb335xi · 05-31-2016, 03:01 PM

Quote:

Originally Posted by JStang

I visually inspected all of the vacuum lines and didn't see any issues but I will still replace them. Boost solenoids are on order and I should have them in this weekend.

Couple hours of work; hopefully you're on to better boost!

Be careful when you're removing the old vacuum lines; they get stuck on nipple connectors. If you yank and pry to aggressively, you may break the nipples on the vacuum canisters, diverters, etc. I sliced mine open and pulled/pried and still managed to break one connection at the vacuum canister ($20 and a trip to dealer to replace it)..

Having a razor and pick handy will help things go quickly.

Good luck!

stari335 · 06-01-2016, 07:25 AM

Did you try reaching out to PTF? I had a similar issue and it was my boost solenoids.

JStang · 06-01-2016, 07:29 AM

Quote:

Originally Posted by stari335

Did you try reaching out to PTF? I had a similar issue and it was my boost solenoids.

I sent the log to Dzenno and he said it was more than likely the boost solenoid.

hellokitty · 06-01-2016, 09:06 AM

keep us posted

05-25-2016, 01:54 PM	#1
JStang Brigadier General 619 Rep 3,660 Posts Drives: FDB M3 CS Join Date: Dec 2010 Location: St. Petersburg, FL iTrader: (9)	Boost Slow to Build - Datazap Log My boost seems really slow to build lately. See attached log and let me know what you think. Boost solenoids or boost leak? No codes at all just very slow to build. It is worth noting that I am at 103k miles and on the original boost solenoids. Could Vanos solenoids be causing this as well? Also on the original Vanos solenoids. Should probably just go ahead and change them both out. http://datazap.me/u/jstang/post-inje...0&data=2-14-15 Last edited by JStang; 05-25-2016 at 03:36 PM..
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05-25-2016, 05:05 PM	#2
Bimmer 808 MT or bust! 179 Rep 289 Posts Drives: 2010 E90 335i M Sport, 6MT Join Date: Nov 2009 Location: Alexandria iTrader: (0) Garage List 2020 X3 M40i [0.00] 2015 M235i [0.00] 2006 330i [0.00] 2010 335i [0.00]	Do you have a before and after log? Maybe it's your tuner? Here's my E50 map with BuraQ. http://datazap.me/u/lumikuke/3-apr-2...10-11-12-13-24 __________________ 2010 E90 335i M Sport, MT - BMW PE; VRSF 7in HD; RB PCV; VRSF CP; Turbosmart KPB BOV; M3 Cowl; VRSF Cerakote DPs; Carly coding; ECS Scoops; Ziza interior LEDs; Fuel-It! Bucketless; Diff lock down brace V2; MHD E60 Map from BQ; Mishimoto OCC; Fuel-It! Ethanol Sensor; Apex 18x9 ARC-8's; StopTech slotted rotors; HPS pads; ECS brake lines; MMP turbos, inlets, outlets; 034 mounts; Kumho PS31s; BimmerLife coils Last edited by Bimmer 808; 05-25-2016 at 05:12 PM.. Reason: Found the tune.
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05-26-2016, 08:35 AM	#6
BQTuning Banned 491 Rep 4,392 Posts Drives: 2012 Z4 sDrive35i M Sport 6MT Join Date: Nov 2010 Location: bq@bqtuning.com iTrader: (0)	On just about almost all IA80S cars I have experienced similar characteristics with boost. Seems to be more prominent on cars with original turbos. It can be tuning related ie it can be improved and adjusted in the tune. Will post couple of logs as an example when I get behind a computer Last edited by BQTuning; 05-26-2016 at 08:50 AM..
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05-26-2016, 10:14 AM	#7
alexve90 Enlisted Member 7 Rep 45 Posts Drives: 2007 335i E90 Join Date: May 2014 Location: Cleveland Oh iTrader: (0)	I have been experiencing something similar; under target until close to 4k except my wgdc is 99% leading up to it. Checked solenoids with JB4 and replaced vacuum lines, adjusted the rear actuator arm, and even disconnected catback briefly as I've read this can be due to clogged secondaries with no real difference in spool. Interested in this as well. __________________ JB4 G5 ISO, VRSF 3" DPs, BMS DCI, BMS OCC, VRSF CP w/Tial BOV, BoostConcepts Stage 2 LPFP, Secondary *** delete w/1792 resonators, VRSF 7in FMIC, 2in. inlets, Meth CM10
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05-26-2016, 10:43 AM	#8
puppydax Lieutenant 298 Rep 536 Posts Drives: '25 Portimao M2 Join Date: Nov 2013 Location: Roseville, CA iTrader: (5)	I'm having issues with this once my car is fully warmed up. But then again my IAT's are around 100 something in Cali. I'm off of target by 3 psi when the turbos begin to taper, so I'm replacing my solenoids as I'm in original solenoids with 88k. Debating on removing the vac canisters as well just to play around and see what happens. Also on original turbos. 07 e92. My Log: http://datazap.me/u/puppydax/v4-e50?log=0&data=4-6-23 I just noticed that my boost isn't as slow to build, so I'm not sure anymore. Interested to see BuraQs advice. __________________ https://www.instagram.com/puppydax/ Previous: 2007 E90 335i \| 2008 E92 335i \| 2009 E82 135i Current: '25 ///M2 Portimao Blue
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05-26-2016, 03:05 PM	#9
BQTuning Banned 491 Rep 4,392 Posts Drives: 2012 Z4 sDrive35i M Sport 6MT Join Date: Nov 2010 Location: bq@bqtuning.com iTrader: (0)	So here is before http://datazap.me/u/buraq/sample-bog...-99&mark=18-29 and here is after http://datazap.me/u/buraq/sample-bog...119&mark=32-43 Still not done with it yet....... The tuning part is the best way to check first before going to get new boost and VANOS solenoids . However though with that type of mileage I would be replacing solenoids regardless.
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05-26-2016, 04:24 PM	#11
JStang Brigadier General 619 Rep 3,660 Posts Drives: FDB M3 CS Join Date: Dec 2010 Location: St. Petersburg, FL iTrader: (9)	The log in the OP was from dzenno's tune. I switched to Jakes yesterday and today I got a 30ff code for the first time. was only hitting about 6 PSI so something is definitely going on. I will investigate this weekend and report back.
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05-26-2016, 06:42 PM	#13
V8bait Lieutenant 406 Rep 574 Posts Drives: e92 335i 6mt Join Date: Oct 2011 Location: Houston iTrader: (1)	"Fixing" mechanical problems with tuning bandaids doesn't sound like fixing anything to me. And I8A0S cars naturally have more under boost problems, they are the oldest ones out there. Sounds like you're going in the right direction though OP.
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05-27-2016, 07:23 AM	#17
Jklad Lieutenant Colonel 429 Rep 1,643 Posts Drives: 2007 335i Coupe Join Date: Nov 2010 Location: Palatine, IL iTrader: (0)	103k on the original vacuum lines? I'll bet they are dry rotted. I'd start with those and solenoids, like you said, before looking at turdbos __________________ 2007 E92 335i MT
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05-31-2016, 08:36 AM	#18
JStang Brigadier General 619 Rep 3,660 Posts Drives: FDB M3 CS Join Date: Dec 2010 Location: St. Petersburg, FL iTrader: (9)	I visually inspected all of the vacuum lines and didn't see any issues but I will still replace them. Boost solenoids are on order and I should have them in this weekend.
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06-01-2016, 07:25 AM	#20
stari335 Private 13 Rep 87 Posts Drives: E92 335i Join Date: Sep 2015 Location: Malton iTrader: (0)	Did you try reaching out to PTF? I had a similar issue and it was my boost solenoids.
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06-01-2016, 09:06 AM	#22
hellokitty Brigadier General 3018 Rep 3,731 Posts Drives: '17 M3 ZCP DCT Join Date: Jul 2010 Location: Southern California iTrader: (2)	keep us posted __________________ 2017 F80 M3 ZCP / AA GESI DPs / Akrapovic Evo / BBS FI-R 19" / Bend Calibration ECUTEK Flex Fuel \| Bilstein B16 DDC + CS EDC / BMC Filters / BMS OCC / CSF HE / ESS CP / Nitto NT555R2 / PD Crank Hub / SPL Suspension / Uniden R7 / Wagner Top Mount IC 2021 Mini GP3 / BMC Filters / BM3 / Cary Jordan E30 / Wagner IC / Remus Race
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