How many case WG rattle have been solved by replacing pressure converter?

kiteboy · 06-14-2014, 03:46 AM

Can give you feedback?

Dmacc · 06-14-2014, 05:51 AM

I solved mine by doing so. Swapped all vacuum lines first still had the issue, even with new turbos. Replaced the boost solenoids and no more wastegate issues for me.

tonyyy · 06-14-2014, 08:03 AM

what is the part number for the boost solenoid?

Ilma · 06-14-2014, 12:24 PM

I just replaced with new OEM Turbos and I did the pressure converter solenoids at same time.

Go figure that My new turbos rattle just as much if not more than my old Ones did.

Sometimes you can minimize the amount of rattle by adjusting the wastegate duty cycle at lower rpms.

That seemed to help with my older Turbos but I haven't had a chance to try that on my new ones yet.

kiteboy · 06-14-2014, 02:47 PM

Mee i ´ve already rattle with new oem turbo, new vaccum line and new vaccum pump
So i test converter pressure solenoid...

kiteboy · 06-18-2014, 04:29 AM

Quote:

Originally Posted by tonyyy

what is the part number for the boost solenoid?

old part is this

new part --> 11747626350

http://www.realoem.com/bmw/showparts...75&hg=11&fg=45

fujitashi · 06-18-2014, 04:46 AM

I did the pressure converter solenoids at same time.

kiteboy · 06-18-2014, 04:50 AM

Mee in my case dealer bmw not.
Only turbo with 80% warranty
Today my car has 156 000km so boost solenoid also, and new turbos 41000km

kiteboy · 06-19-2014, 08:27 AM

So i've replaced my both solenoid by new part, and less rattle, and better acceleration after 4000 rpm

.. (already just litte rattle on deceleration around 3100rpm but since more than 4 year i've got the car , she had already did that ? with news turbos, new vacumm line, pump, and stock like no stock so ???) no really issue to solve definitvely this.

but now no rattle before 3000rpm to 650 rpm and nothing on acceleration...

so good thing in my case

tinnsoldaten · 06-22-2014, 05:11 PM

If one vacuum solenoid fails, what happens then ? Half power of vacuum to turbos? Or will it cause turbo to not boost at all ?

My car does not boost at all , I get max 0.4 psi and always the underboost code.
Checked my forge diverter valves , runs smoothly.
Wastegate operates fine with vacuum to it.

I also have my mind on the aquamist meth system , if some wiring there came loose and cause me problems. But I doubt it , car ran like a champ and then after filling gas , from 93 to 91 , my car stumbled and died , backfired ran like crap , when I had gotten home , I noticed the turbos was out , since then I havent seen boost.

Ive had some fuel too rich codes too.

cstmx_ryder · 06-22-2014, 06:26 PM

Vacuum canisters

kiteboy · 06-23-2014, 02:45 AM

How it´s possible ? Leak vaccum canister??

06-14-2014, 03:46 AM	#1
kiteboy Lieutenant 13 Rep 423 Posts Drives: E92 Stage 2 BR Performance Join Date: Apr 2010 Location: France iTrader: (0)	How many case WG rattle have been solved by replacing pressure converter? Can give you feedback? __________________ 335i Pack M Stage 2 BR Performance 403,5 hp 582n.m/Bilstein B14 pss/R&B PVC2 valve/K&N air filter/Spearco FMIC/pre cata empty/EBC Redstuff,aviation hose, BMW Performance exhaust, Charge pipe Evolution Racewerks, Forge DVs
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06-14-2014, 05:51 AM	#2
Dmacc Colonel 208 Rep 2,799 Posts Drives: 2011 BMW 1M Join Date: Mar 2010 Location: So Cal iTrader: (1)	I solved mine by doing so. Swapped all vacuum lines first still had the issue, even with new turbos. Replaced the boost solenoids and no more wastegate issues for me. __________________ thanks to MGallop
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06-14-2014, 08:03 AM	#3
tonyyy New Member 7 Rep 26 Posts Drives: E92 335i Join Date: Oct 2013 Location: Sydney iTrader: (0)	what is the part number for the boost solenoid?
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06-14-2014, 12:24 PM	#4
Ilma Colonel 194 Rep 2,855 Posts Drives: 2023 M4 Competition Join Date: Nov 2008 Location: Mississauga iTrader: (0)	I just replaced with new OEM Turbos and I did the pressure converter solenoids at same time. Go figure that My new turbos rattle just as much if not more than my old Ones did. Sometimes you can minimize the amount of rattle by adjusting the wastegate duty cycle at lower rpms. That seemed to help with my older Turbos but I haven't had a chance to try that on my new ones yet.
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06-14-2014, 02:47 PM	#5
kiteboy Lieutenant 13 Rep 423 Posts Drives: E92 Stage 2 BR Performance Join Date: Apr 2010 Location: France iTrader: (0)	Mee i ´ve already rattle with new oem turbo, new vaccum line and new vaccum pump So i test converter pressure solenoid...
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06-18-2014, 04:46 AM	#7
fujitashi New Member 0 Rep 26 Posts Drives: bmw Join Date: Jun 2014 Location: x5 iTrader: (0)	I did the pressure converter solenoids at same time. __________________
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06-18-2014, 04:50 AM	#8
kiteboy Lieutenant 13 Rep 423 Posts Drives: E92 Stage 2 BR Performance Join Date: Apr 2010 Location: France iTrader: (0)	Mee in my case dealer bmw not. Only turbo with 80% warranty Today my car has 156 000km so boost solenoid also, and new turbos 41000km
	Appreciate 0 Quote

06-19-2014, 08:27 AM	#9
kiteboy Lieutenant 13 Rep 423 Posts Drives: E92 Stage 2 BR Performance Join Date: Apr 2010 Location: France iTrader: (0)	So i've replaced my both solenoid by new part, and less rattle, and better acceleration after 4000 rpm .. (already just litte rattle on deceleration around 3100rpm but since more than 4 year i've got the car , she had already did that ? with news turbos, new vacumm line, pump, and stock like no stock so ???) no really issue to solve definitvely this. but now no rattle before 3000rpm to 650 rpm and nothing on acceleration... so good thing in my case __________________ 335i Pack M Stage 2 BR Performance 403,5 hp 582n.m/Bilstein B14 pss/R&B PVC2 valve/K&N air filter/Spearco FMIC/pre cata empty/EBC Redstuff,aviation hose, BMW Performance exhaust, Charge pipe Evolution Racewerks, Forge DVs
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06-22-2014, 05:11 PM	#10
tinnsoldaten Captain 41 Rep 715 Posts Drives: e92 335i coupe Join Date: Dec 2008 Location: Bergen iTrader: (1)	If one vacuum solenoid fails, what happens then ? Half power of vacuum to turbos? Or will it cause turbo to not boost at all ? My car does not boost at all , I get max 0.4 psi and always the underboost code. Checked my forge diverter valves , runs smoothly. Wastegate operates fine with vacuum to it. I also have my mind on the aquamist meth system , if some wiring there came loose and cause me problems. But I doubt it , car ran like a champ and then after filling gas , from 93 to 91 , my car stumbled and died , backfired ran like crap , when I had gotten home , I noticed the turbos was out , since then I havent seen boost. Ive had some fuel too rich codes too. __________________ Vargas S2 turbos\|VAC S3 Cylinder head\|RR DPs\|RR MPs\|Supersprint X pipe\|Remus Quad Sport mufflers\|aFe Stage 2 Si with scoops\|Forge DVs\|ER CP\|BMS meth elbow\|Aquamist HFS-4\|Walbro 450 E85 LPFP\|AA FMIC\|BMS OCC\|MHD\|P3 Boost Gauge\|Ohlins Road & Track + camberplates\|M3 sways F/R+ Ground control endlinks\|Vorsteiner v303 19"\|Michelin PS2 sport\|Quaife LSD\|Vorsteiner V35 CF hood\|CF CLS trunk\|Duke Dynamics quad diffusor
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06-22-2014, 06:26 PM	#11
cstmx_ryder Colonel 173 Rep 2,875 Posts Drives: A metal box with a roundel Join Date: Jul 2007 Location: Portland, OR iTrader: (2)	Vacuum canisters __________________ '08 AW E90 335i PROcede V5 \| BMS DCI \| RR DPs \| ETS FMIC \| FORGE DVs \| Stett CP \| Vanguard \| PSS10
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06-23-2014, 02:45 AM	#12
kiteboy Lieutenant 13 Rep 423 Posts Drives: E92 Stage 2 BR Performance Join Date: Apr 2010 Location: France iTrader: (0)	How it´s possible ? Leak vaccum canister??
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