hi
i want to install this mbc on my T4 and i am not sure how..
mybee you can help me?

i know thet i need to connect it here:



but what to connect? the blue or the red one?

thenks.

 

Not sure how good it will work with the S40 computer system.

But to have it hooked up correctly you will need to install the MBC between the compressor hose and the waste gate hose.

Before you do that though I would make sure you have an aftermarket boost guage connected so you do not over boost and harm the engine.

 

in theory it will.
up to 14-15 psi the ecu wiil fit the air\fuel automaticly without remap\chip

yes i have a boost guage.

yes i know thet.
the question was which one of the hose in the lower pic i need to connect to the boost sensor?
the red or the blue?

thenks.

 

I do not have the diagram infront of me but it should be on your hood.

 

Maybe this will help.

 

Like tech mentioned.....You need to hook up the blue part to the compressor side of the turbo and the red part goes to the wastegate.....

 

In theory yes it will. However what people don't understand about our Volvo's 1999+ is that the software system doesn't like MBC's and it likes to retard the boost that you upped it to with the MBC. Not saying that it will, but it is a potential thing.

 

thenk you tech and TIPSP you have been very helpful

S70driver-well.. i am definitely not going to be the first who did it..
from what i reed its worth a shot

 

Try it, let us know.......

Also, what other "mods" have you done?
you should do an exhuast and an intake, then look into ECU upgrade

 

i have k&n 57i intake and.. thets it actualy
i am planning to install a full exhuast system soon
and mybee to upgrade the handling (KONI OR MONRO )
about the ecu i andarstand its a big problem in our cars,
and specially in my country no one understand how to do it right
we dont have alot of T4s here..
and its a problem for me to send the ecu to a company outside Israel because i need the car every day..
also its very expensive

 

i have another question before i install the mbc..
about the stock boost-right now Im boosting at 9-10 psi constant with spikes to 11-12 is it normal in the T4 engine? model 2000' B4194T2


engine

 

sounds normal.....

you can check out the volvo reasource thread at the top of each page....it has a bunch of aftermarket and OEM sites.....IPD, EST, VIVA, EVOLVO.....etc. might have a upgrade...also a drop in chip

 

i will chack it
thenks man.
.

 

i
I need your help guys..
I install the mbc and everything seems fine at the begining but now
when i accelerate from 0-100 in second gear at 4000 rpam +-
70-80 km/h the boost go up to about 13-14 psi and then the car start to stuttering for 2-3 seconds something like this:
http://www.youtube.com/watch?v=QIR0xiCooro
only in my case its happen in second gear..
can it be related to the mbc??
because i have this problem before and i fix it with new plugs (before 6000 km)
but now after i install the mbc its back again
what do you think?

 

It might be time for coils and wires now.
When you add more boost it stresses the other parts more.
Is the check engine light flashing when it happens?

 

no.. no light.
everything seems normal exept for this and the cumputer thet stop showing me how mach fuel i am using.

when i had this problem before i didn't know what cause it so i change the coils and wires and after thet the plugs thet solve the problem. so iam guessing its not the wires or the coils. any chance is the mbc itself causing it?

thenks for the quick response.

 

There is a learning time for the computer.....It will bog down on you the first few times you go to WOT...Drive around normal for like ten minutes or more, then do several full throttle runs see if it gets better.

It might take a whole day of driven' to get the ECU to learn.

I dont think they are related.

 

some one advise me to gap the plugs down.
you think it wiil help?
thenks.

 

Try it, but if it continues after a few days then you'll realize that MBC's don't like working with newer Volvo's.

 

Gap the plugs to about .025 and see if it is better.