P3 Guage for the 1M. Do you really need the boost sensor?

cmcgonag · 10-15-2013, 05:59 PM

Thinking about getting the P3 gauge...do you really need the boost sensor since it is an N54? I thought our engines had one....are the readings just off or something?

Tried searching couldn't find anything.

Thanks

Colin

cmcgonag · 10-15-2013, 07:02 PM

That is why I am curious. That engine has to have a boost sensor. Just need some trick programming to get it to work right.

ZIPNBYE · 10-15-2013, 08:12 PM

The install of the boost line and tap took me about 10min total to plumb. Very simple. Works well.

JYohay · 10-15-2013, 09:34 PM

There's are different versions of the p3 (for e92 at least) v1 uses boost line to be tapped into the cp, but the newer ones use odb2 I'm pretty sure. FYI odb2 doesn't work for piggyback such as jb4 since the DME thinks it's getting stock boost

ZIPNBYE · 10-16-2013, 08:23 AM

V2 of the P3 gauge still requires a vacuum / boost tap for the N54, not for the N55, as that signal is digital (per the P3 instructions).

I still don't see the OP addressing why the tap is an issue...

boostedtwin · 10-16-2013, 09:03 AM

Where's exactly do you boost tap? Is it on the hose or on the pipe itself?

ozinaldo · 10-16-2013, 09:25 AM

Quote:

Originally Posted by boostedtwin

Where's exactly do you boost tap? Is it on the hose or on the pipe itself?

Here is the P3Cars install video (second video that shows precisely how to tap the boost line):

http://www.youtube.com/watch?feature...&v=zdq4L3luczY

ozinaldo · 10-16-2013, 09:26 AM

Quote:

Originally Posted by ZIPNBYE

V2 of the P3 gauge still requires a vacuum / boost tap for the N54, not for the N55, as that signal is digital (per the P3 instructions).

I still don't see the OP addressing why the tap is an issue...

+1. If anything, should be even more accurate reading it via diverter valve tap.

JimD · 10-16-2013, 09:58 AM

You can create virtual guages for anything on the OBDII port with a software product called "torque". There are others. It costs about $30 to be able to do this. You need a device to send the OBDII signals out via bluetooth and the software on your smart phone or tablet. If you want to do it routinely you also need a mount for your phone.

Torque also reads and resets check engine codes. It's a neat little $5 app. I've used it on my bimmer, Suzuki SUV, and Toyota pickup.

cmcgonag · 10-16-2013, 11:21 AM

I really dont want to mod my 1M. Did it to my 325i, got hooked, and years later the car is a mess...

Anyways it is the principal of the matter, if I already have a boost sensor why cant I use it? I dont see why P3 cant program it to read off of it from the start....If the torque app and the AWRON guage can see boost I dont know why P3 cant...

ZIPNBYE · 10-16-2013, 02:13 PM

It's one simple rubber tube and a three-way T fitting. As noted, it only takes 10min. Ziptie it up and you'll never know that it's there, and it won't wear. Do it right.

Amnizu · 10-16-2013, 03:28 PM

IMHO if you're going to take the time to t-tap you should really just get a true analog gauge boost gauge. Sample based digital gauges are known for masking spikes and pressure leaks.

10-15-2013, 05:59 PM	#1
cmcgonag Private 7 Rep 76 Posts Drives: 2019 Cayenne Turbo - 2011 1M Join Date: Jan 2013 Location: Houston, TX iTrader: (0)	P3 Guage for the 1M. Do you really need the boost sensor? Thinking about getting the P3 gauge...do you really need the boost sensor since it is an N54? I thought our engines had one....are the readings just off or something? Tried searching couldn't find anything. Thanks Colin
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10-15-2013, 07:02 PM	#2
cmcgonag Private 7 Rep 76 Posts Drives: 2019 Cayenne Turbo - 2011 1M Join Date: Jan 2013 Location: Houston, TX iTrader: (0)	That is why I am curious. That engine has to have a boost sensor. Just need some trick programming to get it to work right.
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10-15-2013, 08:12 PM	#3
ZIPNBYE Let's save military ranks for those who earn it! 45 Rep 1,161 Posts Drives: ...on the Ragged Edge Join Date: Dec 2008 Location: Edmonton, AB, Canada iTrader: (6) Garage List 2013 BMW e92 M3 Cou ... [7.50] 2013 BMW e84 X1 xDr ... [7.00]	The install of the boost line and tap took me about 10min total to plumb. Very simple. Works well. __________________ Richard 2013 BMW M3 Individual -- Fire Orange (sold) 2013 BMW X1 xDrive35i M-Sport -- Valencia Orange (sold) 2011 BMW 1-series M Coupe (#205/220) -- Valencia Orange (sold) 2009 BMW 135i M-Sport Coupe -- Space Grey (sold)
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10-15-2013, 09:34 PM	#4
JYohay Banned 42 Rep 2,009 Posts Drives: 2011 X5 Join Date: Mar 2012 Location: NY iTrader: (3)	There's are different versions of the p3 (for e92 at least) v1 uses boost line to be tapped into the cp, but the newer ones use odb2 I'm pretty sure. FYI odb2 doesn't work for piggyback such as jb4 since the DME thinks it's getting stock boost
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10-16-2013, 08:23 AM	#5
ZIPNBYE Let's save military ranks for those who earn it! 45 Rep 1,161 Posts Drives: ...on the Ragged Edge Join Date: Dec 2008 Location: Edmonton, AB, Canada iTrader: (6) Garage List 2013 BMW e92 M3 Cou ... [7.50] 2013 BMW e84 X1 xDr ... [7.00]	V2 of the P3 gauge still requires a vacuum / boost tap for the N54, not for the N55, as that signal is digital (per the P3 instructions). I still don't see the OP addressing why the tap is an issue... __________________ Richard 2013 BMW M3 Individual -- Fire Orange (sold) 2013 BMW X1 xDrive35i M-Sport -- Valencia Orange (sold) 2011 BMW 1-series M Coupe (#205/220) -- Valencia Orange (sold) 2009 BMW 135i M-Sport Coupe -- Space Grey (sold)
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10-16-2013, 09:03 AM	#6
boostedtwin Sheriff 109 Rep 1,481 Posts Drives: spyder, Macan GTS, 4xe Rubicon Join Date: Mar 2007 Location: Orlando iTrader: (10) Garage List 07 335i [0.00] 07 335i [0.00]	Where's exactly do you boost tap? Is it on the hose or on the pipe itself? __________________ 2023 Porsche Spyder, 2024 Porsche Macan GTS, 4Xe Rubicon & 2021 BMW X5 M Package
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10-16-2013, 09:58 AM	#9
JimD Brigadier General 368 Rep 3,547 Posts Drives: 128i convertible Join Date: Apr 2009 Location: Lexington, SC iTrader: (0)	Try "torque" You can create virtual guages for anything on the OBDII port with a software product called "torque". There are others. It costs about $30 to be able to do this. You need a device to send the OBDII signals out via bluetooth and the software on your smart phone or tablet. If you want to do it routinely you also need a mount for your phone. Torque also reads and resets check engine codes. It's a neat little $5 app. I've used it on my bimmer, Suzuki SUV, and Toyota pickup. __________________ 128i Convertible, MT, Alpine White, Black Top, Taupe Leatherette, Walnut, Sport Ordered 5/22/09, Completed 6/4/09, At Port 6/9/09, On the Georgia Highway 6/13/09, Ship Arrived Charleston 6/24/09 at 10pm, PCD 7/21/09
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10-16-2013, 11:21 AM	#10
cmcgonag Private 7 Rep 76 Posts Drives: 2019 Cayenne Turbo - 2011 1M Join Date: Jan 2013 Location: Houston, TX iTrader: (0)	I really dont want to mod my 1M. Did it to my 325i, got hooked, and years later the car is a mess... Anyways it is the principal of the matter, if I already have a boost sensor why cant I use it? I dont see why P3 cant program it to read off of it from the start....If the torque app and the AWRON guage can see boost I dont know why P3 cant...
	Appreciate 0 Quote

10-16-2013, 02:13 PM	#11
ZIPNBYE Let's save military ranks for those who earn it! 45 Rep 1,161 Posts Drives: ...on the Ragged Edge Join Date: Dec 2008 Location: Edmonton, AB, Canada iTrader: (6) Garage List 2013 BMW e92 M3 Cou ... [7.50] 2013 BMW e84 X1 xDr ... [7.00]	It's one simple rubber tube and a three-way T fitting. As noted, it only takes 10min. Ziptie it up and you'll never know that it's there, and it won't wear. Do it right. __________________ Richard 2013 BMW M3 Individual -- Fire Orange (sold) 2013 BMW X1 xDrive35i M-Sport -- Valencia Orange (sold) 2011 BMW 1-series M Coupe (#205/220) -- Valencia Orange (sold) 2009 BMW 135i M-Sport Coupe -- Space Grey (sold)
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10-16-2013, 03:28 PM	#12
Amnizu First Lieutenant 20 Rep 325 Posts Drives: 502 of 740 Join Date: May 2010 Location: Seattle iTrader: (0)	IMHO if you're going to take the time to t-tap you should really just get a true analog gauge boost gauge. Sample based digital gauges are known for masking spikes and pressure leaks.
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