T Boost Controller Off Powersteering?

[BlackBox]

Hey,

I am trying to clean my 34 GTT engine by up some while installing a plazmaman,

There is a vacuum line going from intake manifold into steel tube across front of engine to the powersteering valve?/Sensor?

Would it be ok to move this from manifold to charge pipe and T off the power steering hose to the Apex Boost controller?

Or would this somehow have an ill effect on boost control?

Also is it normal for the second hose on the powersteering to be plugged?

Cheers

[BlackBox]

Anybody?

Also what is this for? Its on the drivers side against the firewall with a very small line (made from hard plastic) going to the manifold,

Edited August 6, 2013 by BlackBox

[GTSBoy]

No picture, but likely to be the boost guage MAP sensor.

[BlackBox]

oops picture added,

Also thought of another Question,

Why do i Have a MAP sensor, Boost sensor and AFM?

Also how hard is it for a tuner to tune around IAC? so i could remove the iac from the new manifold and blank it off

[XRATED]

... I don't often say this, but please consult with a professional before you do to much more to your car.

1. No... don't T off those lines, make sure they are connected as standard.

2. Looks like the sensor for a factory boost gauge

3. You don't have a MAP sensor that is reffrenced by the ecu. The MAP sensor is the boost sensor. AFM is reffrenced by the ecu.

4. Don't even think about it. You won't be able to correctly tune around idle controll. FFS there is a provision on the manifold to bolt it straight on???

J.

[BlackBox]

Thankyou for the reply

1) Could you tell me why running a line from intake pipe to boost controller that also T's onto power steering would affect boost control?

3) Ok, i still dont really understand that, while setting up for the plazmaman i realized i have Map sensor and Boost sensor running to the manifold. As well as the 3rd that you say is likely for boost gauge

4) True there is a provision for it, but i will be getting a tune after the install anyway so if i could remove it and tidy the engine bay with no ill effects why wouldnt i?

[GTSBoy]

1) Never, ever, take a signal for boost control from anything other than a dedicated tapping port with nothing else connected to it. This ensures that should you have a failure of any of the other hoses and equipment that you (shouldn't) have connected to the same tapping point, that you don't lose boost control.

3) The R34 has a MAP sensor for the guage, same as all preceding (turbo) Skylines. The R34 also has a MAP sensor that is connected to the ECU. But it is not used to control the fuelling. It is effectively just a boost sensor, and effectively just used for overboost protection. The load signal for the engine is still taken from the AFM.

4) Ill effects include losing control of idle speed. Not having it is daft. "Tidyness" at the expense of utility is daft.

[BlackBox]

Makes a bit more sense now,

Thanks mate