Garage1217

iTrader: (5)

Anyone else have this issue..??? It seems when this little solinoid starts pulsing, my boost gauge will start to bounce. Only happens in vac. In fact, it more than bounces, it shakes back and forth so fast you can hear it. Has always done this since new. And only happens when that little electronic solinoid connected to the vac line starts pulsing.... Anyway to fix this..? I thought about just tapping the intake plenum...

mwuf15

what brand of gauge do u have?

Garage1217

iTrader: (5)

Autometer. Is not the gauge, tried it in another car already. Only does it when that thing starts pulsing.... Makes the vac pulse... then the gauge pulses...

cdubber9

It happened to me too, and yes it is very annoying and loud when it was mounted to the cai. However, since I put my turbo on it doesn't pulse on the gauge anymore, but you can still hear it tick, but no as bad. I don't know if it has to do with where the vac lines were tee'd in or the way I have it tied up.

Make sure there are no pinches or hard angles in the vac lines going to the vsv. I have mine tied to the power steering fluid resivor, so mabey it being more elevated helps. Don't know if it will work, but good luck.

pollup

hard wire the gauge into the vac line (run a hose)

Garage1217

iTrader: (5)

that is how you install a mechanical boost gauge dood. Already done. The 1 vacume line is connected to a electronic device that pulses once the car is warm. makes the gauge bounce.

pollup

listen pendejo, where the **** did it say it was a mechanical boost gauge? last time i checked, there is electronic boost gauges, and they are run by wire. electronic boost gauges usually make noise, mechanical ones usually dont. enough said, dont be a dumbass.

Garage1217

iTrader: (5)

Calm down before you blow an o-ring. Re-read what you wrote, I simply responded And yeah, calling names like we are in 3rd grade makes life so much better.

pollup

a mechanical boost gauge does not have an electronic device that pulses, thats an electronic boost gauge. a mechanical is a direct connect. thats what i was getting at, i know what i typed, i think your misunderstanding the difference between the 2 gauges.

Garage1217

iTrader: (5)

No, I think your misunderstanding what I am talking about. The mechanical boost gauge I have, is hooked to the 1 vacume line off the throttle body. The vacume line goes to an oem solinoid device that pulses vacume out to another line for some reason... when it starts pulsing and bleading vac, then I get the bouncy gauge...

pollup

i have my spliced in the same spot, i get no pulsing.

Garage1217

iTrader: (5)

interesting, I sure get it... No idea what that item even does anyways... Anyone have any clues..?

06scionsc

Hey desertheat my megan gauge does the same thing. I installed it today and noticed the same thing on occassions. I noticed that the vacuum line does not appear to be sealing perfectly and I think it may be leaking vacuum. I am going to install a vacuum block that way I can using pressure fittings instead of the cheap t-taps. Just a thought maybe yours has the same issue. i'll let you know if anything changes when i add the vacuum block.

06scionsc

The valve you are wondering about i believe is the vsv and it is a part of the evap control system.

Garage1217

iTrader: (5)

Cool keep me posted on that. I was going to tap the intake mani and use a barb fitting if we cannot get this straight... The other factor is out bypass valve is hooked to this and will pulse the bypass as well.

Schuller

vsv and it is a part of the evap control system.

What does it do. I'ts hooked up the wiring harness and the vac lines? Emisions?

06scionsc

Hey just an update for anyone watching this. I installed a vaccum block today and used a pressure fitting to attach the boost line. My gauge so far has not bounced once. I am assuming that the issue with mine was a vacuum leak from the line. So desertheat you may want to get a vacuum block.

Garage1217

iTrader: (5)

interesting, will check that out... I have new gauges coming in today .... so I need to get somthing done

cdubber9

The vsv soleniod is connected to throttle body, it kicks in under idel conditions to keep fuel vapor from escaping the TB. It is tempreture dependent, the hotter it is, the more it kicks on.