$1000 on the floor

[33OH]

That's fine. I'm not trying to shove it down your throat. Just saying, a 650 isn't worth very much. My friend traded his '06 650R for a 97 Ford Ranger last summer.

[Nexus1155]

I have a question maybe someone can answer, hopefully Tamago or Cali, but these ECU's i have been thinking they make corrections based of the O2 sensor readings, but is it possible they read off the MAP sensor as well? Do these cars even have one or do they manage without it?

because i know there is a way to trick the O2 sensor, and i read of people tricking the MAP sensor by putting a restrictor in the line...

[taKuto]

if it's adjusting to stock, then it has to be reading some value that the piggyback is not intercepting in order to adjust accordingly? But if you modify the O2 and MAF, what does that leave for the ECU to base its adjustments off? The ecu can't be completely closed-loop i'm sure it relies on feedback off other values if it's smart enough to adjust to changes.

[Nexus1155]

I mean is a Yaris, not a space rocket

Says you...

MAP sensor is another thing that most cars read off for boost? like i asked before but it was disregarded lol i guess

[taKuto]

I think the yaris only has an MAF on the intake, but for boost applications a MAP is the preferred way to go, though I wonder if its worth it to trick the ecu MAF while running off an addon MAP at the same time.

[Nexus1155]

it might be depending if you can add one on there, but i wouldve figured all cars had a 1 Bar MAP, how is it going to detect manifold pressure? I think the pressure is displayed in scangauge?

http://www.go.jeep-xj.info/HowtoMAPsensor.htm

[cali yaris]

2 or 3 people have tried to tune a Yaris with them with out succsess.

Four, actually.

the new yarii ecu's are pansies

LOL so true and so sad.

Takuto, I know you're trying to gain information, and that's cool -- but there are those of us who have tried and failed so far, so please accept that information as valid.

My suggestion is GO FOR IT, and teach us something. The fact remains that there is no tuned turbo Yaris in the USA at this time, unless there is one I don't know about. Mine will be soon, but at the cost of going full standalone. That's not the solution most have been looking for.

Unless more people try, we won't get anywhere.

(I said Yaris, Tamago -- you're one of our inspiring 1.5L exceptions )

[taKuto]

any prospects on swapping out the yaris ecu with an echo ecu, with just some rewiring for the harness?

[Tamago]

Originally Posted by taKuto

any prospects on swapping out the yaris ecu with an echo ecu, with just some rewiring for the harness?

not worth the effort.

you'd need to replace multiple sensors, lengthen the harness, drill a hole in the firewall.

all that and you could have got a standalone.

or a faster car

[Arkhangel]

Originally Posted by taKuto

any prospects on swapping out the yaris ecu with an echo ecu, with just some rewiring for the harness?

Originally Posted by Tamago

not worth the effort.

you'd need to replace multiple sensors, lengthen the harness, drill a hole in the firewall.

all that and you could have got a standalone.

or a faster car

Any other 1nz-fe car we could swith the ECU with or would it be the same?
Off of Wiki

1NZ-FE

The 1NZ-FE is a 1.5 L (1497 cm³) conventional Otto cycle variant of the 1NZ-FXE. It has the same bore and stroke, but the compression ratio is lowered to 10.5:1, and it features VVT-i. Output is 80 kW (106 hp) at 6000 rpm with 140 Nm (103 ft·lbf) of torque at 4200 rpm.

Applications:

* Toyota Yaris/Echo
* Scion xA/ist
* Scion xB
* Toyota Vios
* Toyota Raum
* Toyota Porte
* Toyota Platz
* Toyota Auris
* Toyota Fun Cargo
* Toyota Premio
* Toyota Allion
* Toyota Sienta
* Toyota WiLL
* Toyota Probox
* Toyota Ractis
* Toyota Corolla Axio
* Toyota Corolla Fielder

[CASTREX]

Originally Posted by Tamago

not worth the effort.

you'd need to replace multiple sensors, lengthen the harness, drill a hole in the firewall.

all that and you could have got a standalone.

or a faster car

You will also have to figure out way to handle the drive by wire.

Echos / xA / xB have all conventional cable throttel.

[CASTREX]

There are alot of tuning devices out there... is just that only a few people have tried it so far.

The new Scion TC's shouldn't be that different from the Yaris in regards to the ECU tunning...
And look at them... bunch of them running turbos with piggy backs.

Some one should just take a Yaris to Dezod or something...

[Sabretooth]

Well once Titan Motorsports (Deals with Big Scale! Toyota Projects) here in Orlando gets their new shop open, I might just knock on the door and ask what the can do again, since the will have a new shop with more toys at their disposal. they do Unichip tunes,so that might be an option once more; but when I asked about it before...they said the gains werent worth the money.

Plus they work on so many TC's and Celica's they might just have a trick up their sleeve, or know someone who does.

[CASTREX]

Titan is great, don't get me wrong... but they are Supra guys. That's like a totally different universe. They are use to big full blown projects! usually involving high end stand alones.

Throw in a 2jz in a Yaris and that would be the place to go...

There are a few places that have done extensive research on the scion TC platform and have come around some clever solutions to some of the problems we have seen with Yaris.

[PHXDEMON]

2jz yaris

[Tamago]

Originally Posted by PHXDEMON

2jz yaris

it's been discussed with great lulz on this forum already..