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Boost Gauge - R33 - Is The Correct ?

Munkyb0y
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Munkyb0y Grand Master

Munkyb0y

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Posted (edited)

I have an aftermarket boost gauge on my R33 RB25DET.

The gauge seems to work fine. But i'm not sure if it was installed onto the correct vacuum hose.

It's spliced into the hose that runs from my BOV. I read that it should be running off the other line that leaves the intake manifold (going the the factory boost gauge unit).

Does it matter, seeing as it works ok?

Running on stock boost, the gauge shows around 8psi at the top end.

Here's a pic.

post-29392-1150172967.jpg

Edited by Munkyb0y
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Munkyb0y Grand Master

Munkyb0y

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don't worry about it - its fine

Thanks Waz.

I was told that if i leave it there, it may increase the volume of the vacuum line going to the BOV, and might reduce it's response in opening. Or the T-joint might be restricting the flow to the valve.

It's working fine as far as i can tell.

Does this line play any part in air/fuel mixture ?

Also, while i've got ur attention (anyone), what is this plug for. Why is nothing connected to it?

post-29392-1150268956.jpg

Edited by Munkyb0y
Munkyb0y Grand Master

Munkyb0y

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I think the plug is used if you have an automatic but im not sure what it does

So it's not meant to be connected to anything? Can anyone confirm this?

Nice website Munna1 :D

What do you think about the way my boost gauge is connected (pic in first post).

J_Red33 Experienced

J_Red33

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Posted

Yeah it's a throttle position sensor. I'm betting ur car's a series 1 R33. The manuals in a series 1 didn't use the sensor, but the auto's would. Series 2 used the TPS on manuals as well but it's a 2 plug setup instead of a single. Nothing to worry about mate :devil:

Munkyb0y Grand Master

Munkyb0y

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  • Author
Posted (edited)
Yeah it's a throttle position sensor. I'm betting ur car's a series 1 R33. The manuals in a series 1 didn't use the sensor, but the auto's would. Series 2 used the TPS on manuals as well but it's a 2 plug setup instead of a single. Nothing to worry about mate :D

Yep series 1. :devil: cheers

What do you think of the boost gauge line tapping into the main vacuum line that runs to my bov?

I just want to know if it might cause any probs there.

(pic in the first post)

Edited by Munkyb0y
Munkyb0y Grand Master

Munkyb0y

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  • Author
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mate as i said don't worry aobut it

no it won't cause any change in function of your bov

no it won't change your air:fuel mixtures

yes it will show you the correct boost pressure

have a coke and a smile now ;)

I dont like coke.

But i might go have some caffeine

cheers :O

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