Why can't I control boost on my ST car using Mac solenoid??? Please help

E92oreo · 08-29-2014, 09:07 PM

Car runs perfect on wastegate pressure. Hooked up Mac solenoid and boost just skyrockets... Am I missing something as far as hardwire or user settings?

FRMTL2_335i · 08-29-2014, 09:34 PM

here is his log on wastegate pressure

http://datazap.me/u/frmtl2335i/6262?...-11&mark=14-44

3000GT MR · 08-29-2014, 09:38 PM

If your trying to control the mac valve off dme logic it isn't going to work. Only a piggy back like the jb, procede, aem, MS etc can control the 20-80hz valve

E92oreo · 08-29-2014, 09:54 PM

I have jb4 g5wuth single turbo back end and flash

E92oreo · 08-29-2014, 09:56 PM

Single turbo guru roll call??? Terry,Vishnu, eleventeen.... Help me I'm stuck

FRMTL2_335i · 08-29-2014, 10:07 PM

here you can see boost going well over 18psi

http://datazap.me/u/frmtl2335i/6262-...log=0&data=1-4

E92oreo · 08-30-2014, 11:20 AM

Bump! Nobody has insight?

'___' · 08-30-2014, 11:38 AM

Quote:

Originally Posted by E92oreo

Bump! Nobody has insight?

You posted this in a million threads, then made your own. If people had your answer, they would have already given it to you.

You need to talk with terry as he's the tune you're using. So, I would suggest emailing/calling him.

TT-Tom · 08-30-2014, 12:19 PM

Quote:

Originally Posted by E92oreo

Car runs perfect on wastegate pressure. Hooked up Mac solenoid and boost just skyrockets... Am I missing something as far as hardwire or user settings?

more than likely you have the mac plumbed incorrectly.

E92oreo · 08-31-2014, 05:12 PM

Emailed terry and got a bs answer to read the thread. Had solenoid routing checked by several knowledgable ppl.

Mike@N54Tuning.com · 08-31-2014, 07:34 PM

Your log shows boost going crazy with PWM = 0 (e.g. solenoid unplugged) so maybe it's a bum solenoid. Maybe you put two of the lines on backwards. Who knows. If its not working keep changing things until you find the problem. As a general tip most of the single turbo guys hang out in and post in the JB4 single turbo thread. Your best chance at finding outside help is going to be there.

Mike

08-29-2014, 09:07 PM	#1
E92oreo Lieutenant 18 Rep 409 Posts Drives: 07 BMW 335i Join Date: Aug 2012 Location: Brookpark,ohio iTrader: (1)	Why can't I control boost on my ST car using Mac solenoid??? Please help Car runs perfect on wastegate pressure. Hooked up Mac solenoid and boost just skyrockets... Am I missing something as far as hardwire or user settings?
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08-29-2014, 09:34 PM	#2
FRMTL2_335i Major 76 Rep 1,071 Posts Drives: E92 335i Join Date: Mar 2013 Location: ohio iTrader: (1)	here is his log on wastegate pressure http://datazap.me/u/frmtl2335i/6262?...-11&mark=14-44 __________________ FFTEC 6466 Gen2, MHD Flash Tuned by Wedge, BMS PI Kit, FUEL-IT Stg 3 pump, HALTECH PS-1000, MFactory LSD w/lock down brace, ECS Trailing Arms, M3 control arms, M3 brace, DGR Coilovers, N20 tmap sensor, BMS OCC, VRSF exhaust w/4" tips, VRSF CP, Tial BOV. BigTom FMIC, Msport front & rear, m3 sides skirts.
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08-29-2014, 09:38 PM	#3
3000GT MR Major 265 Rep 1,392 Posts Drives: 09 335i/3000gt vr4 Join Date: Jun 2012 Location: Sav GA iTrader: (6)	If your trying to control the mac valve off dme logic it isn't going to work. Only a piggy back like the jb, procede, aem, MS etc can control the 20-80hz valve __________________ Have a single turbo and/or tired of burning up O2 sensors? Ask me about the new ADV O2 sensor retro kits! 335i 2010 e92 M-sport Mods: VM Top mount 6466, Aquamist HSF4 w/custom direct port. VRSF IC + Exhaust 335i 2009 e90 665RWHP VFF900 ST RIP .
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08-29-2014, 09:54 PM	#4
E92oreo Lieutenant 18 Rep 409 Posts Drives: 07 BMW 335i Join Date: Aug 2012 Location: Brookpark,ohio iTrader: (1)	I have jb4 g5wuth single turbo back end and flash
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08-29-2014, 09:56 PM	#5
E92oreo Lieutenant 18 Rep 409 Posts Drives: 07 BMW 335i Join Date: Aug 2012 Location: Brookpark,ohio iTrader: (1)	Single turbo guru roll call??? Terry,Vishnu, eleventeen.... Help me I'm stuck
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08-29-2014, 10:07 PM	#6
FRMTL2_335i Major 76 Rep 1,071 Posts Drives: E92 335i Join Date: Mar 2013 Location: ohio iTrader: (1)	here you can see boost going well over 18psi http://datazap.me/u/frmtl2335i/6262-...log=0&data=1-4 __________________ FFTEC 6466 Gen2, MHD Flash Tuned by Wedge, BMS PI Kit, FUEL-IT Stg 3 pump, HALTECH PS-1000, MFactory LSD w/lock down brace, ECS Trailing Arms, M3 control arms, M3 brace, DGR Coilovers, N20 tmap sensor, BMS OCC, VRSF exhaust w/4" tips, VRSF CP, Tial BOV. BigTom FMIC, Msport front & rear, m3 sides skirts.
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08-30-2014, 11:20 AM	#7
E92oreo Lieutenant 18 Rep 409 Posts Drives: 07 BMW 335i Join Date: Aug 2012 Location: Brookpark,ohio iTrader: (1)	Bump! Nobody has insight?
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08-31-2014, 05:12 PM	#10
E92oreo Lieutenant 18 Rep 409 Posts Drives: 07 BMW 335i Join Date: Aug 2012 Location: Brookpark,ohio iTrader: (1)	Emailed terry and got a bs answer to read the thread. Had solenoid routing checked by several knowledgable ppl.
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08-31-2014, 07:34 PM	#11
Mike@N54Tuning.com Joint Chiefs of Staff 4927 Rep 116,037 Posts Drives: 2007 335i, 2015 M3 Join Date: Dec 2008 Location: N54tuning.com iTrader: (89)	Your log shows boost going crazy with PWM = 0 (e.g. solenoid unplugged) so maybe it's a bum solenoid. Maybe you put two of the lines on backwards. Who knows. If its not working keep changing things until you find the problem. As a general tip most of the single turbo guys hang out in and post in the JB4 single turbo thread. Your best chance at finding outside help is going to be there. Mike
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