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TBI, vss questions
https://auszookers.com/forum/viewtopic.php?f=5&t=15095		 Page 1 of 1
Author:  31zook [ Mon Sep 13, 2010 6:45 pm ]
Post subject:  TBI, vss questions
I've a G13A, it's been fully rebuilt and im now sick of my $1100 rebuilt tuned and dyno'd carby. Now for all the people who have done TBI i need your tech heads. this is the list of thing's i know i need and there is one thing im not sure of.
TBI, (single point injection)
Manifold, the 1.3 doesn't have the right bolt pattern for it, i can make an adapter plate but, it will look more stock
Loom, full engine bay, some under dash stuff
ECU
Air hat cleaner thing
O2 sensor
VL high pressure pump
Cap off standard fuel pump
High pressure rubber lines
now it has been put to me that ill need the vss, (vehicle speed sensor) i have no idea why i would need this, as my speedo comes from the Tcase.... Im researching about this, but still need some straight up advice on the situation.

Cheers :D
Author:  31zook [ Mon Sep 13, 2010 7:03 pm ]
Post subject:  Re: TBI, vss questions
vss link

oozuk wrote:
The VSS sends a digital signal to the engines ecu relative to road speed
it sends a pulse signal that increases in frequency when road speed increases, much like a ABS sensor

the reason it needs it for such things like lean cruse, operating EGR, mapping changes.

Have heard reports of people having throttle flat spots with G16 16v conversions without this


want33s wrote:
VSS stands for Vehicle Speed Sensor.
Car will run fine without it, but the CHECK ENGINE light will come on intermittently and get annoying.

VSS tells the ECM how fast the vehicle is going so it can FINE tune the fuel mixture for a given speed & throttle load.
I want a VSS just to make the bloody check engine light go away.


I just grimbo'd myself..... :(
Author:  want33s [ Mon Sep 13, 2010 9:11 pm ]
Post subject:  Re: TBI, vss questions
You will want to add a surge tank to your list as EFI pumps don't suck well and burn out VERY quickly if run dry.
Fit a lift pump from fuel tank to surge tank and then EFI pump to engine.

Alternatively fit a Coily tank with a Vitara pump/pickup
or
Modify the mounts and fit a SWB EFI Vit tank.
Run a new line for supply and use the original supply as the return.
Author:  joeblow [ Mon Sep 13, 2010 10:59 pm ]
Post subject:  Re: TBI, vss questions
look at the diagram for whatever tbi you end up with as alot of tbi systems do not require, and have no circuit for a vss.
Author:  mightymouse [ Mon Sep 13, 2010 11:09 pm ]
Post subject:  Re: TBI, vss questions
A small tip, if you were to use a volvo injected fuel pump they have a surge tank attached.
Author:  atari4x4 [ Tue Sep 14, 2010 12:10 am ]
Post subject:  Re: TBI, vss questions
+ high pressure fuel filter.
Author:  want33s [ Tue Sep 14, 2010 1:08 am ]
Post subject:  Re: TBI, vss questions
mightymouse wrote:
A small tip, if you were to use a volvo injected fuel pump they have a surge tank attached.

That isn't a surge tank it is called an accumulator. It takes the pulse of of the fuel supply. There is still a lift pump in the tank.
Author:  Brett [ Tue Sep 14, 2010 1:09 am ]
Post subject:  Re: TBI, vss questions
1st question is what ecu are you using to run it? only some need the vss

another thing you need is a fuel reg.

what tbi are you using?
Author:  BlueSuzy [ Tue Sep 14, 2010 1:16 am ]
Post subject:  Re: TBI, vss questions
People have run the 1.6 tbi swift ecu, it would propbably overfuel alittle, but it would hammer..

Otherwise there is alot on outers, 'Megasquirt' for an ecu, and have heard that the old falcooons had tbi as well.
Author:  want33s [ Tue Sep 14, 2010 2:37 am ]
Post subject:  Re: TBI, vss questions
Brett wrote:
1st question is what ecu are you using to run it? only some need the vss

another thing you need is a fuel reg.

what tbi are you using?

Regulator is built in to the TBI.
Author:  31zook [ Tue Sep 14, 2010 8:22 am ]
Post subject:  Re: TBI, vss questions
want33s wrote:
You will want to add a surge tank to your list as EFI pumps don't suck well and burn out VERY quickly if run dry.
Fit a lift pump from fuel tank to surge tank and then EFI pump to engine.

Alternatively fit a Coily tank with a Vitara pump/pickup
or
Modify the mounts and fit a SWB EFI Vit tank.
Run a new line for supply and use the original supply as the return.


alright, can i just get a stock sierra tank and fit a lift pump to it? from a VIT? I know there is TIG involved with this but im going to be putting the fuel filler on top of the tank anyway....

joeblow wrote:
look at the diagram for whatever tbi you end up with as alot of tbi systems do not require, and have no circuit for a vss.


1.6 sedan swift, whats needed? or not needed?

@brett stock 1.6 ecu running closed loop, PLUS congrats to brett for being a dad :D

cheers everyone for your input :D
Author:  Brett [ Tue Sep 14, 2010 8:46 am ]
Post subject:  Re: TBI, vss questions
just run a vitara efi fuel pump and you'll be set.

i have a extra vss dash cluster here if you want it?

cheers about the kid as well
Author:  31zook [ Tue Sep 14, 2010 6:52 pm ]
Post subject:  Re: TBI, vss questions
Brett wrote:
cheers about the kid as well


I knew night wheeling was always going to lead to something big :D

VSS unit is on it's way alone with TBI and stuff...
Author:  31zook [ Sat Oct 02, 2010 9:34 am ]
Post subject:  Re: TBI, vss questions
hey im just after a quick answer, im installing the vss biso, and if the stock sierra doesn't have vss from stock then will it activate the vss thingo? sorry for all the crap jargo?
Author:  steak_knife [ Sat Oct 02, 2010 10:03 am ]
Post subject:  Re: TBI, vss questions
31zook wrote:
hey im just after a quick answer, im installing the vss biso, and if the stock sierra doesn't have vss from stock then will it activate the vss thingo? sorry for all the crap jargo?


A what?? :?
Author:  31zook [ Sat Oct 02, 2010 10:16 am ]
Post subject:  Re: TBI, vss questions
hmm, i think it's called a reed, so will my stock speedo sensor activate the Vehicle speed sensor?
Author:  royce [ Sat Oct 02, 2010 10:19 am ]
Post subject:  Re: TBI, vss questions
yes, the magnets that make your needle move are what flicks the reed
Author:  31zook [ Sat Oct 02, 2010 10:36 am ]
Post subject:  Re: TBI, vss questions
thanks royce :D shall complete my vss on tuesday arvo as i broke my swift one... :(
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