whats wrong with this setup?(pics included)

rx7 FC TII · 12-22-2008, 02:33 PM

i just tapped the acv block off plate for the boost gauge but im not getting any vacuum or boost off of it once the car is started. ignore the color and rtv coming out the side. i know its not leaking cause the car idles but when i pull the vac line off the car still idles and doesnt die so i know its not pulling vacuum.

classicauto · 12-22-2008, 02:55 PM

Probably not actually seeing vaccum. I'm not a fan of tappign that plate myself...I prefer a more "direct" method of eitehr tapping a runner or something of the like.

Could also be bunged up with RTV?

Whizbang · 12-22-2008, 03:10 PM

your much better off taking a tee off the MAP sensor line close to the manifold.

85rx-7gsl-se · 12-22-2008, 03:19 PM

Quote:

Originally Posted by Low Impedance

your much better off taking a tee off the MAP sensor line close to the manifold.

x2

djmtsu · 12-22-2008, 05:32 PM

Yup, tee off the MAP signal. That is how most FC guys do it.

fire85gslse · 12-22-2008, 06:05 PM

Yup most people tee off the MAP signal, simple, easy, and it works.

Flooder · 12-22-2008, 06:14 PM

Where's the map sensor at? Are you talking about the line that the pressure sensor is connected to?

FerociousP · 12-22-2008, 06:52 PM

the map sensor is the pressure sensor

Fidelity101 · 12-22-2008, 08:35 PM

Quote:

Originally Posted by Flooder

Where's the map sensor at? Are you talking about the line that the pressure sensor is connected to?

passenger side of the engine bay (or driver side if you got a RHD car

) near the strut tower next to the AFM or MAF (depending if its s4 or s5) it has a vacuum line going to it and the top will say N3XX PRESSURE SENSOR, its black and is only 1"x3" black rectangle looking thing.

rx7 FC TII · 12-23-2008, 12:15 PM

well the problem for me with the map sensor is if i do that then i dont have enough pressure for my BOV to open.

i have heard now that on the UIM near the throttle body. the three nipples pointing towards the front of the car can be used for this and the middle one is the best.

so im going to experiment with a few things

Whizbang · 12-23-2008, 12:19 PM

Quote:

Originally Posted by rx7 FC TII

well the problem for me with the map sensor is if i do that then i dont have enough pressure for my BOV to open.

have you done this personally, or just reiterating "hear say"

djmtsu · 12-23-2008, 12:38 PM

My BOV works fine and my signal is split to the sensor, BOV (Apexi) and the boost gauge.

Flooder · 12-23-2008, 01:14 PM

I was confused. Everything I've ever read has called that a "pressure sensor" on the TII's and a "boost sensor" on the NA's.

85rx-7gsl-se · 12-23-2008, 01:50 PM

Quote:

Originally Posted by djmtsu

My BOV works fine and my signal is split to the sensor, BOV (Apexi) and the boost gauge.

Exactly...I ran my Map sensor, fpr, bov, boost gauge, and water/meth sensor all off the same post with no problems.

WE3RX7 · 12-23-2008, 02:38 PM

You can tap into the same line for BOV. It wont affect the devices at all. Vac exists whenever there is absence of pressure, if your connections are not TIGHT, then maybe it would affect the BOV from working as well. However, you should also have an adjustment on the BOV (if aftermarket) to firm it up if needed...

12-22-2008, 02:33 PM	#1
rx7 FC TII Rotary Fanatic Join Date: Feb 2008 Location: hoover iTrader: (0) Posts: 161 Rep Power: 17	whats wrong with this setup?(pics included) i just tapped the acv block off plate for the boost gauge but im not getting any vacuum or boost off of it once the car is started. ignore the color and rtv coming out the side. i know its not leaking cause the car idles but when i pull the vac line off the car still idles and doesnt die so i know its not pulling vacuum.

12-22-2008, 03:10 PM	#3
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp iTrader: (5) Posts: 3,190 Rep Power: 20	your much better off taking a tee off the MAP sensor line close to the manifold. __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook

12-22-2008, 05:32 PM	#5
djmtsu My minds tellin' me no... Join Date: Feb 2008 Location: Murfreesboro, TN iTrader: (10) Posts: 4,043 Rep Power: 21	Yup, tee off the MAP signal. That is how most FC guys do it. __________________ 1976 Mazda Cosmo RX-5 1976 Mazda Cosmo RX-5 2003 Toyota Tundra TRD 2015 Toyota 4Runner SR5

12-22-2008, 06:05 PM	#6
fire85gslse RCC Addict Join Date: Feb 2008 Location: Middle TN iTrader: (0) Posts: 1,029 Rep Power: 18	Yup most people tee off the MAP signal, simple, easy, and it works. __________________ I own A few Rotaries and Yes, I have a rotary problem. (SELLING OFF All my parts) 79SA(Respeed Car),93 FD (tweakit)

12-22-2008, 06:14 PM	#7
Flooder Rotary Fanatic Join Date: Feb 2008 Location: Tucson, Arizona iTrader: (0) Posts: 321 Rep Power: 17	Where's the map sensor at? Are you talking about the line that the pressure sensor is connected to? __________________ AZRX7.COM Red 1991 A-package(SOLD) Red 1990 GXL(SOLD) White 1989 GTUs(DEAD) Red 1988 Turbo II(DD) Black 1988 Turbo II(SOLD) Rebuilt and street ported motor, Garrett T04E Turbo, 3" Turbo Inlet Duct/AEM Dry Flow Filter, Your Mom's MBC, Blitz FMIC, 890cc and 1000cc injectors, Tomei FPR, Walbro, Rtek 2.1 ECU, Taurus E-Fan, Turbonetics BOV, 3" Motoria/Corksport Turbo Back Exhaust, Emissions Removed, Greddy Boost Gauge, Megan Racing Water Temp Gauge, 5one5 Triple Gauge Pod, AEM Uego, GP Sports Body Kit, Fiber Images CF Hood, S5 Seats, S5 Tails, S5 Alt, Dual Alt Pulley, D2 Coilovers, NRG Quick Release, Shook Motorsports Radiator, HID's, AN/Steel Braided Oil Cooler Lines, SUPER JDM TYTE DRIFT BUTTON www.DensetsuMotorsports.com www.AZRX7.Com www.FloodersAdventure.com

12-22-2008, 06:52 PM	#8
FerociousP I-had-a-bad-experience... Join Date: Feb 2008 Location: M'boro iTrader: (2) Posts: 1,046 Rep Power: 18	the map sensor is the pressure sensor __________________ '15 Juke Nismo '06 MX-5 GT SOLD '04 S Silver RX-8 GT Track Day Use SOLD '90 Black TII vert w/ Sprint RE stock port/turbo DD dyno (242.6whp@5500rpm @12psi 8psi@redline) and (250ftlbtq@4800rpm @13psi) SOLD '89 GTUs 6p TII SOLD, '87 sport SOLD, '79 SA stock SOLD '91 B2600i 4x4 w/ Rx-8 LSD SOLD

12-23-2008, 12:15 PM	#10
rx7 FC TII Rotary Fanatic Join Date: Feb 2008 Location: hoover iTrader: (0) Posts: 161 Rep Power: 17	well the problem for me with the map sensor is if i do that then i dont have enough pressure for my BOV to open. i have heard now that on the UIM near the throttle body. the three nipples pointing towards the front of the car can be used for this and the middle one is the best. so im going to experiment with a few things

12-23-2008, 12:38 PM	#12
djmtsu My minds tellin' me no... Join Date: Feb 2008 Location: Murfreesboro, TN iTrader: (10) Posts: 4,043 Rep Power: 21	My BOV works fine and my signal is split to the sensor, BOV (Apexi) and the boost gauge. __________________ 1976 Mazda Cosmo RX-5 1976 Mazda Cosmo RX-5 2003 Toyota Tundra TRD 2015 Toyota 4Runner SR5

12-23-2008, 01:14 PM	#13
Flooder Rotary Fanatic Join Date: Feb 2008 Location: Tucson, Arizona iTrader: (0) Posts: 321 Rep Power: 17	I was confused. Everything I've ever read has called that a "pressure sensor" on the TII's and a "boost sensor" on the NA's. __________________ AZRX7.COM Red 1991 A-package(SOLD) Red 1990 GXL(SOLD) White 1989 GTUs(DEAD) Red 1988 Turbo II(DD) Black 1988 Turbo II(SOLD) Rebuilt and street ported motor, Garrett T04E Turbo, 3" Turbo Inlet Duct/AEM Dry Flow Filter, Your Mom's MBC, Blitz FMIC, 890cc and 1000cc injectors, Tomei FPR, Walbro, Rtek 2.1 ECU, Taurus E-Fan, Turbonetics BOV, 3" Motoria/Corksport Turbo Back Exhaust, Emissions Removed, Greddy Boost Gauge, Megan Racing Water Temp Gauge, 5one5 Triple Gauge Pod, AEM Uego, GP Sports Body Kit, Fiber Images CF Hood, S5 Seats, S5 Tails, S5 Alt, Dual Alt Pulley, D2 Coilovers, NRG Quick Release, Shook Motorsports Radiator, HID's, AN/Steel Braided Oil Cooler Lines, SUPER JDM TYTE DRIFT BUTTON www.DensetsuMotorsports.com www.AZRX7.Com www.FloodersAdventure.com

12-23-2008, 02:38 PM	#15
WE3RX7 RCC Addict Join Date: Feb 2008 Location: VA iTrader: (1) Posts: 1,812 Rep Power: 18	You can tap into the same line for BOV. It wont affect the devices at all. Vac exists whenever there is absence of pressure, if your connections are not TIGHT, then maybe it would affect the BOV from working as well. However, you should also have an adjustment on the BOV (if aftermarket) to firm it up if needed...