# What is this?
**URL:** https://forums.speedlife.net/t/what-is-this/144599
**Category:** Canada Nissan Automotive
**Created:** [October 9, 2006, 2:28pm UTC](https://forums.speedlife.net/t/what-is-this/144599 "2006-10-09T14:28:57Z")
**Posts on this page:** 19
**Page:** 1
### Author:  [@SRS\_3](https://forums.speedlife.net/u/SRS_3)
#### Post date: [October 9, 2006, 2:28pm UTC](https://forums.speedlife.net/t/what-is-this/144599/1 "2006-10-09T14:28:57Z")
What is this on my ignitor chip plate and what vacuum lines run to it?
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### Author:  [@GRIPPY](https://forums.speedlife.net/u/GRIPPY)
#### Post date: [October 9, 2006, 3:00pm UTC](https://forums.speedlife.net/t/what-is-this/144599/2 "2006-10-09T15:00:05Z")
boost control solenoid. Shud be vacuume lines that run from your throttle body/intake manifold to there and then into the wastegate.
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### Author:  [@SRS\_3](https://forums.speedlife.net/u/SRS_3)
#### Post date: [October 9, 2006, 3:15pm UTC](https://forums.speedlife.net/t/what-is-this/144599/3 "2006-10-09T15:15:37Z")
i thought the vacuum line that runs from the top right throttle body goes to the BOV and then from the charge pipe to the waste gate?
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### Author:  [@DeathBy240](https://forums.speedlife.net/u/DeathBy240)
#### Post date: [October 9, 2006, 4:03pm UTC](https://forums.speedlife.net/t/what-is-this/144599/4 "2006-10-09T16:03:45Z")
I ditched that piece. I was told I didn’t need it.
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### Author:  [@SRS\_3](https://forums.speedlife.net/u/SRS_3)
#### Post date: [October 9, 2006, 4:07pm UTC](https://forums.speedlife.net/t/what-is-this/144599/5 "2006-10-09T16:07:01Z")
good enough for me! thanks!
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### Author:  [@RS13](https://forums.speedlife.net/u/RS13)
#### Post date: [October 9, 2006, 4:10pm UTC](https://forums.speedlife.net/t/what-is-this/144599/6 "2006-10-09T16:10:23Z")
Ditch it.
All it does is pull boost.
Bad solenoid
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### Author:  [@Nis240](https://forums.speedlife.net/u/Nis240)
#### Post date: [October 9, 2006, 4:33pm UTC](https://forums.speedlife.net/t/what-is-this/144599/7 "2006-10-09T16:33:57Z")
> [@RS13](#):
>
> Ditch it.
>
> All it does is pull boost.
>
> Bad solenoid
Really, a valve that makes the wastegate open sooner eh…Too bad that doesnt exist. :anal
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### Author:  [@silvia\_sr20det\_s13](https://forums.speedlife.net/u/silvia_sr20det_s13)
#### Post date: [October 9, 2006, 4:36pm UTC](https://forums.speedlife.net/t/what-is-this/144599/8 "2006-10-09T16:36:16Z")
not needed…it restricts boost and looks ugly! ditch it…
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### Author:  [@SRS\_3](https://forums.speedlife.net/u/SRS_3)
#### Post date: [October 9, 2006, 4:45pm UTC](https://forums.speedlife.net/t/what-is-this/144599/9 "2006-10-09T16:45:04Z")
consider it gone! thanks
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### Author:  [@imported\_silvia](https://forums.speedlife.net/u/imported_silvia)
#### Post date: [October 9, 2006, 8:29pm UTC](https://forums.speedlife.net/t/what-is-this/144599/10 "2006-10-09T20:29:45Z")
I read somewear that it boosts low RPM boost helping spool-up. don’t have any proof though! just get a boost controller.
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### Author:  [@Nis240](https://forums.speedlife.net/u/Nis240)
#### Post date: [October 9, 2006, 9:10pm UTC](https://forums.speedlife.net/t/what-is-this/144599/11 "2006-10-09T21:10:33Z")
> [@silvia](#):
>
> I read somewear that it boosts low RPM boost helping spool-up. don’t have any proof though! just get a boost controller.
Most likely, it probably holds the wastegate shut till almost stock boost. There is no way in hell that it lowers stock boost any lower than what the wastegate is set at.
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### Author:  [@beatshack](https://forums.speedlife.net/u/beatshack)
#### Post date: [October 10, 2006, 12:22am UTC](https://forums.speedlife.net/t/what-is-this/144599/12 "2006-10-10T00:22:27Z")
^^ yeah, i heard that straight from autodream. they said it stays closed until 7psi then slams open, so the actuator sees 0psi then 7psi suddenly. if you run vacuum straight to the wastegate actuator, the wastegate will start to open alot sooner and be fully open at 7psi (like most stock actuators they open slowly)
i took the thing apart, that thing that looks like am adjuster knob is not a knob. its not even threaded inside, its a valve controlled by an electromagnet.
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### Author:  [@TravyPoo](https://forums.speedlife.net/u/TravyPoo)
#### Post date: [October 10, 2006, 10:40pm UTC](https://forums.speedlife.net/t/what-is-this/144599/13 "2006-10-10T22:40:54Z")
i have that top line plugged off when i did my manifold. the side one still runs to the T line. if i cap it off what needs to be done with the harness? just leave it there but plug up the holes?
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### Author:  [@TyPhOOn](https://forums.speedlife.net/u/TyPhOOn)
#### Post date: [October 11, 2006, 10:54am UTC](https://forums.speedlife.net/t/what-is-this/144599/14 "2006-10-11T10:54:39Z")
remove the green box … you will get more boost as people are right in saying it restricts vaccum to the wastegate
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### Author:  [@beatshack](https://forums.speedlife.net/u/beatshack)
#### Post date: [October 11, 2006, 11:42am UTC](https://forums.speedlife.net/t/what-is-this/144599/15 "2006-10-11T11:42:10Z")
psi to wastegate = less boost
so… restricting boost to wastegate = more boost
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### Author:  [@TyPhOOn](https://forums.speedlife.net/u/TyPhOOn)
#### Post date: [October 11, 2006, 12:58pm UTC](https://forums.speedlife.net/t/what-is-this/144599/16 "2006-10-11T12:58:02Z")
me write bass-ackwards
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### Author:  [@Nis240](https://forums.speedlife.net/u/Nis240)
#### Post date: [October 11, 2006, 1:45pm UTC](https://forums.speedlife.net/t/what-is-this/144599/17 "2006-10-11T13:45:58Z")
> [@TyPhOOn](#):
>
> remove the green box … you will get more boost as people are right in saying it restricts vaccum to the wastegate
Wastegate open with vacumm now…Wow this thread is such an eye opener. :rolleyes:
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### Author:  [@Last\_Fuse](https://forums.speedlife.net/u/Last_Fuse)
#### Post date: [October 11, 2006, 2:20pm UTC](https://forums.speedlife.net/t/what-is-this/144599/18 "2006-10-11T14:20:52Z")
> [@Nis240](#):
>
> [quote=TyPhOOn]remove the green box … you will get more boost as people are right in saying it restricts vaccum to the wastegate
Wastegate open with vacumm now…Wow this thread is such an eye opener. :rolleyes:[/quote]
I’m so confused…
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### Author:  [@SRS\_3](https://forums.speedlife.net/u/SRS_3)
#### Post date: [October 11, 2006, 3:45pm UTC](https://forums.speedlife.net/t/what-is-this/144599/19 "2006-10-11T15:45:14Z")
so did imention im not using it. :rolleyes: lol