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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > How to measure boost?



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      04-10-2015, 08:25 PM   #1
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How to measure boost?

Seemingly simple question.

But need an answer that works!

Car 2007 335i , build 12/2006 ( important to those who know), untuned

What i have tried...
1. Torque of course. Bt adapter connects fine etc. but boost gets truncated to a max of 2.7 psi. This is a known issue. My guess, needs cable.
2. Bmwhat (trial ver only) with my elm bt. They clearly say need cable for pre 3/2007 build.

Question... Before i buy full ver of bmwhat and the cable, can it monitor boost or intake man pressure? I didn't see that option in the trial ver?

Any other obd methods?

Ps i measured boost with a hose connected to the intake man barb( hose hooked to the dvs). Measured 8 psi.
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      04-11-2015, 07:31 AM   #2
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P3cars vent gauge is a nice option!
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      04-11-2015, 08:19 AM   #3
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Thanks. A little more specific, with my android phone or windows tab?
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      04-11-2015, 08:34 AM   #4
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JB4 Mobile app. I have it on my Android and like it a lot.
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      04-11-2015, 11:57 AM   #5
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The JB4 app is very nice, but since it's a stock car, I assume you don't have a JB4. So...MHD Flasher. The monitor module will do the job and output more parameters (like 6 cyl timing) than any other options.
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      04-11-2015, 12:01 PM   #6
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Quote:
Originally Posted by MHD Tuning View Post
The JB4 app is very nice, but since it's a stock car, I assume you don't have a JB4. So...MHD Flasher. The monitor module will do the job and output more parameters (like 6 cyl timing) than any other options.
Ty for reading and noticing its untuned correct no jb4

So, mhd flasher, i can monitor without tuning correct? Cobb cannot monitor stock program unless you install a stage.
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      04-11-2015, 12:03 PM   #7
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Yes you can monitor your stock ECU.
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      04-11-2015, 12:11 PM   #8
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Quote:
Originally Posted by MHD Tuning View Post
Yes you can monitor your stock ECU.
Thanks, is it available to the public?

You seem to be from germany, your peers bmwhat (ivini) recognize that pre 3/2007 build need a cable for coding and monitoring and bluetooth may not work. Any comments?
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      04-11-2015, 12:26 PM   #9
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Ok just saw, mhd works only w cable! Great. Guessing this cable should be fine,


http://www.amazon.com/Original-BMWha...s=Bmwhat+cable

With the usb otg adapter.

Does flas module include monitor module? Or both need to be purchased separately?
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      04-12-2015, 04:48 PM   #10
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Quote:
Originally Posted by Sgop335 View Post
Ok just saw, mhd works only w cable! Great. Guessing this cable should be fine,


http://www.amazon.com/Original-BMWha...s=Bmwhat+cable

With the usb otg adapter.

Does flas module include monitor module? Or both need to be purchased separately?
This cable only works for pre 3/2007 production models.
Flash and monitor are separate purchases.

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      04-12-2015, 05:21 PM   #11
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Quote:
Originally Posted by MHD Tuning View Post
This cable only works for pre 3/2007 production models.
Flash and monitor are separate purchases.

Martial
Yep, its only k line cable, which should be fine for me.

Would like to buy the monitor for now, are you public yet?
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      04-13-2015, 02:19 PM   #12
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Quote:
Originally Posted by Sgop335 View Post
Yep, its only k line cable, which should be fine for me.

Would like to buy the monitor for now, are you public yet?
Sure, since yesterday: https://play.google.com/store/apps/d...hd.flasher.n54
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      04-13-2015, 02:22 PM   #13
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Quote:
Originally Posted by altostratus View Post
P3cars vent gauge is a nice option!
+1

You can get boost from the OBD port with a diagnostic cable. Assuming you are stock tuned.

Mike
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