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Quick Help on Boost Gauge "T" & Wiring locations...

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Old 02-22-02, 11:04 PM
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Talking Quick Help on Boost Gauge "T" & Wiring locations...

... I just want to check before I screw something up.

When I install my Boost Gauge, do I "T" into the line coming off of the Pressure Sensor? Or is there another line?

The FAQ for an A'PEXi boost gauge (at http://fc3s.org/boost.html) shows the the line going into something other than the Pressure Sensor - what is this plugging into?



Also I have the electrical Defi-Link gauge, where are the wires located that I splice into for the Control Unit. The instructions weren't specific to any particular car and I don't know jack about wiring - but I have a workshop manual so maybe someone could tell me where to look.

Thanks in advance, guys!
Old 02-23-02, 12:38 AM
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Re: Quick Help on Boost Gauge "T" & Wiring locations...

Originally posted by JavaMan
... I just want to check before I screw something up.

When I install my Boost Gauge, do I "T" into the line coming off of the Pressure Sensor? Or is there another line?

yes, from the input i got you just T it into the boost pressure sensor line...but try to do this closer to the block. there is a pill in the line closer to the boost sensor box...so T into the line closer to the engine block before this...
Old 02-23-02, 12:59 AM
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Talking Thanks, Erik...

... so it sounds like I don't "T" into the line that is shown in the above picture, because that blue line isn't running into the Pressure Sensor, right?
Old 02-23-02, 11:34 AM
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Re: Thanks, Erik...

Originally posted by JavaMan
... so it sounds like I don't "T" into the line that is shown in the above picture, because that blue line isn't running into the Pressure Sensor, right?
yeah, i'm not sure...that pic is kinda confusing...not to mention he points to one hose but circles both...PM me your e-mail address and i'll send you a pic that i received that is more informative...
Old 02-23-02, 11:41 AM
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erik i gona be doing the same soon could you send me the photo too.
pinfield357@hotmail.com
Old 02-23-02, 11:48 AM
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Yeah, that'll work fine...

That's some expensive boost gauge!&nbsp How much did you pay for it?


-Ted
Old 02-23-02, 11:57 AM
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Originally posted by Pinfield357
erik i gona be doing the same soon could you send me the photo too.
pinfield357@hotmail.com
hehe...check yo e-mail
Old 02-23-02, 01:12 PM
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thanx that is exactly what i was looking for
Old 02-24-02, 02:05 AM
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Talking Re: Re: Thanks, Erik...

Originally posted by Erik
...PM me your e-mail address and i'll send you a pic that i received that is more informative...
Thanks for the pic, Erik. Your pic helps a lot with the labeling and the larger view of the engine bay.

BTW, I have an electrical Boost Gauge (Defi-Link), anyone happen to know which wires I have to splice into and >where< behind the dash can I find the wires?

I bought the Defi's @ rx7store.net for ~$220 for the Boost Gauge and Controller Unit. Has all the data recording/peak playback goodies. It's the cheapest I have seen them for.

Last edited by JavaMan; 02-24-02 at 02:08 AM.
Old 02-24-02, 02:38 PM
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When installing a boost gauge you can T into any vacuum source downstream of the throttles. The MAP sensor line's probably the easiest but it doesn't matter.
I havent seen one but I'd guess the gauge needs switched power, earth and illumination? Search for power with a test light, earth's easy and I found the easiest place to get a light feed was from the cigarette lighter.
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