Map Sensor Hookup? - Page 2 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

King Tut · 04-25-2014, 07:17 PM

Quote:

Originally Posted by Howardwei

Yea I just have trouble with the wiring part. My jr kit has a pcv somewhere in that vacuum line from the manifold. I assume you just install the whole T joint with sensor upstream of that pcv?

What your JR kit has is a check valve to prevent the crankcase from being pressurized. You need to place the T prior to the check valve and closer to the back of the intake manifold. As for wiring, my guess is you have a power, ground, and the wire actually sending the 0 to 5V signal to the gauge.

Howardwei · 04-25-2014, 11:32 PM

The p3 vent gauge has a auxiliary port for external boost sensor in the driver cabin. Just don't know how the wire from the actual sensor itself could be connect to in the engine bay that would correspond to one of the place where the aux wire inside the cabin need to go.

HRTROB · 04-26-2014, 04:53 AM

Quote:

Originally Posted by Howardwei

The p3 vent gauge has a auxiliary port for external boost sensor in the driver cabin. Just don't know how the wire from the actual sensor itself could be connect to in the engine bay that would correspond to one of the place where the aux wire inside the cabin need to go.

There is a round hole covered by a plug in the firewall right below the brake fluid reservoir. You just have to remove the plug then you can use that hole to pass the wire from the boost sensor to your gauge

Howardwei · 04-27-2014, 02:09 AM

Ah I see. and the auxkillary on the side of cabin from the sensor. do you just tap it into one of the plugs covered by trim near the clutch?

Fizz · 11-12-2014, 08:57 AM

This might sound stupid to some, but can I plug in say an omni 4 bar sensor if the car was already tuned with the same brand 3 bar sensor?

Sportsguy83 · 11-12-2014, 09:10 AM

Quote:

Originally Posted by Fizz

This might sound stupid to some, but can I plug in say an omni 4 bar sensor if the car was already tuned with the same brand 3 bar sensor?

No, need to change two simple values in the tune for it to work properly.

Voltage and offset IIRC. It's a very simple change in the tune.

yomny · 01-08-2015, 03:27 PM

Guys whats the deal with the map sensor naming, now they have a brz frs map sensor, is this still the same piece as the k motor map?

King Tut · 01-08-2015, 03:53 PM

Quote:

Originally Posted by yomny

Guys whats the deal with the map sensor naming, now they have a brz frs map sensor, is this still the same piece as the k motor map?

As long as it looks like your OEM one, then buy it.

yomny · 01-08-2015, 03:56 PM

lol thats the issue, most sites dont have an accurate picture, even FT86speedfactory has a weird pic for whats supposed to be our sensor. I'm sure this isn't an issues, i'm sure them as well as rallysportdirect have the correct part listed.

01-08-2015, 03:27 PM	#21
yomny Senior Member Join Date: Jul 2012 Drives: 2013 FRS Whiteout Location: MIA Posts: 1,545 Thanks: 557 Thanked 469 Times in 340 Posts Mentioned: 33 Post(s) Tagged: 5 Thread(s)	Guys whats the deal with the map sensor naming, now they have a brz frs map sensor, is this still the same piece as the k motor map? __________________ GTX2867R, moto-tuned , tomei op , motiv fp , Invidia Q300 ti , Rota titan 17x9 +42 , nt555 255/40 , ST coilovers w/cascam , Hotchkis sways

01-08-2015, 03:56 PM	#23
yomny Senior Member Join Date: Jul 2012 Drives: 2013 FRS Whiteout Location: MIA Posts: 1,545 Thanks: 557 Thanked 469 Times in 340 Posts Mentioned: 33 Post(s) Tagged: 5 Thread(s)	lol thats the issue, most sites dont have an accurate picture, even FT86speedfactory has a weird pic for whats supposed to be our sensor. I'm sure this isn't an issues, i'm sure them as well as rallysportdirect have the correct part listed. __________________ GTX2867R, moto-tuned , tomei op , motiv fp , Invidia Q300 ti , Rota titan 17x9 +42 , nt555 255/40 , ST coilovers w/cascam , Hotchkis sways

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04-25-2014, 11:32 PM	#16
Howardwei Senior Member Join Date: Jun 2013 Drives: BRZ Location: Houston Posts: 165 Thanks: 17 Thanked 9 Times in 9 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	The p3 vent gauge has a auxiliary port for external boost sensor in the driver cabin. Just don't know how the wire from the actual sensor itself could be connect to in the engine bay that would correspond to one of the place where the aux wire inside the cabin need to go.

04-27-2014, 02:09 AM	#18
Howardwei Senior Member Join Date: Jun 2013 Drives: BRZ Location: Houston Posts: 165 Thanks: 17 Thanked 9 Times in 9 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Ah I see. and the auxkillary on the side of cabin from the sensor. do you just tap it into one of the plugs covered by trim near the clutch?

11-12-2014, 08:57 AM	#19
Fizz Senior Addict Join Date: Jan 2013 Drives: 86 GT Location: Perth, Australia Posts: 1,217 Thanks: 249 Thanked 336 Times in 215 Posts Mentioned: 12 Post(s) Tagged: 0 Thread(s)	This might sound stupid to some, but can I plug in say an omni 4 bar sensor if the car was already tuned with the same brand 3 bar sensor?

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