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AEM Boost Gauge Install?

Old Oct 28, 2018, 12:50 PM
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AEM Boost Gauge Install?

I've been searching all over the internet for a video or pictures atleast of this install. There's a lot of threads from the past but the pictures don't work anymore. A lot of them say the easiest way is to go behind the glove box and use that rubber grommet back there. How do I remove the glove box? How do I route the cable/vacuum hose once it's in the engine bay? Where exactly do I T into in the engine bay? If anybody could get pictures of all of this I would appreciate it.
Old Oct 30, 2018, 05:12 PM
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Try this Vid. Czero is one of our members & this should help

If you need a pic of where to tap into for the boost signal, let me know

Last edited by MinusPrevious; Oct 30, 2018 at 06:20 PM.
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Old Oct 30, 2018, 07:52 PM
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Hey Brad

Heres a pic of the boost line tap off of the mani. Keep in mind this is the stock RS set-up

The other pic shows how Mitsu routed the boost line into the fender area & then into the interior & then to the back of the gauge.

With the electronic setups, you may choose to keep the boost line in the engine bay & run the electrical to the sending unit & keep all the vacuum line in the engine bay

Joe

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Old Oct 30, 2018, 08:04 PM
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It looks like my 05 MR already has that line. How do I get to it from the cabin?
Originally Posted by MinusPrevious
Hey Brad

Heres a pic of the boost line tap off of the mani. Keep in mind this is the stock RS set-up

The other pic shows how Mitsu routed the boost line into the fender area & then into the interior & then to the back of the gauge.

With the electronic setups, you may choose to keep the boost line in the engine bay & run the electrical to the sending unit & keep all the vacuum line in the engine bay

Joe

Old Oct 30, 2018, 08:06 PM
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So you have an MR w/a boost gauge? If so, why not just tap into the line already inside the cabin?

Pull down your glove box. The trigger is in the upper left of the box at the stop. The little panel will push out, so you can pull down the box
Old Oct 30, 2018, 08:09 PM
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I’m guessing this line that leads to nowhere behind the glove box is the one to use?
Originally Posted by MinusPrevious
So you have an MR w/a boost gauge? If so, why not just tap into the line already inside the cabin?

Pull down your glove box. The trigger is in the upper left of the box at the stop. The little panel will push out, so you can pull down the box
Old Oct 30, 2018, 08:12 PM
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Originally Posted by USMC Brad

I’m guessing this line that leads to nowhere behind the glove box is the one to use?
If you are referring to a black vacuum line, that would be it. I just got my AEM gauges & im just going to tap into my interior vacuum line & install the sending unit to the vacuum line.
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Old Oct 30, 2018, 08:13 PM
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I’m gonna try it and see if it works. I’ll let you know how it goes. You’re a life saver
Originally Posted by MinusPrevious
If you are referring to a black vacuum line, that would be it. I just got my AEM gauges & im just going to tap into my interior vacuum line & install the sending unit to the vacuum line.
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Old Oct 30, 2018, 09:13 PM
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Originally Posted by MinusPrevious
If you are referring to a black vacuum line, that would be it. I just got my AEM gauges & im just going to tap into my interior vacuum line & install the sending unit to the vacuum line.
I love you wow. My AEM boost gauge is working now. It's reading between -12 and -16 though at idle, is that normal?

Last edited by MinusPrevious; Oct 31, 2018 at 05:58 AM.
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Old Oct 31, 2018, 05:58 AM
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Brad. You on Cams? Seems like stock cam vacuum is approx -15 to -18 (your -16 looks Ok to me)

I think this is the spec here in the manual showing a Min of -15HG


Last edited by MinusPrevious; Oct 31, 2018 at 06:11 AM.
Old Oct 31, 2018, 06:00 AM
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Originally Posted by MinusPrevious
Brad. You on Cams? Seems like stock cam vacuum is approx -15 to -18 (your -16 looks Ok to me)
As far as I know yes. The previous owner got it tuned though and it has a AEM intake.
Old Oct 31, 2018, 06:15 AM
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Cams will produce less vacuum at idle for sure. Im on S2's, so Ill have to check mine when i get my gauge installed

I ordered 3 AEM's (Boost, Oil Pressure & the UEGO Air Fuel)
Old Oct 31, 2018, 06:23 AM
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Originally Posted by MinusPrevious
Cams will produce less vacuum at idle for sure. Im on S2's, so Ill have to check mine when i get my gauge installed

I ordered 3 AEM's (Boost, Oil Pressure & the UEGO Air Fuel)
I don’t know if I was seeing things or not but it’s idling at -16 to -18 this morning. You’re a lot of help btw lol thanks
Old Oct 31, 2018, 06:32 AM
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Happy to help, where i can. There are plenty of guys here who know much more

Owned the EvO for over 10 years so ive seen a few things LOL

Hey, make us proud there at Camp Pendleton

Go Marines
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