performance chip

[400 dollar yaris]

does anyone know if these chips will work or if it is just some bullshit
http://www.ebay.com/sch/Performance-Chips-/33597/i.html?_qfkw=1&_mqf=0&Model%2520Year=&Model=Yaris&_dmpt=Motors_Car_Truck_Parts_Accessories&Make=Toyota&_vxp=mtr

i was looking at this one in particular

http://www.ebay.com/itm/NEW-PERFORMANCE-CHIP-2007-2008-2009-2010-TOYOTA-YARIS-/270963815283?pt=Motors_Car_Truck_Parts_Accessories&fits=Model%3AYaris%7CMake%3AToyota&hash=item3f16b3b373&vxp=mtr

just wondering :laugh:

[Betrivent]

No.

[jpmck03]

If Toyota could make a Yaris with "Up to +5 MPG fuel savings! Up to +35 horsepower! and Up to +40 ft. lbs of torque!" don't you think they'd just sell it that way?

Guessing that magic eBay device is just two wires going into a fancy tic-tac box with a resistor in it!

[Golddeenoh]

from what I have read, those are usually a 5 cent resistor, and a dollar case. all they do is make the signal going to the computer a different voltage so that the computer compensates and usually dumps more fuel into the engine. so sure it may make a few hp or feel like it but in actuality it wont improve fuel millage or be worth the investment.

don't waste you money or time on them. If it isn't a piggy back system or a whole ECU rebuild/reprogram it isn't real.

[yarisugi]

Buy it and tell us if it works.

[Astroman]

They're crap. Also the Yaris has a learning ECU so even if it did anything, the Yaris ECU would compensate and put things back to normal. Complete and utter garbage.

[CoryM]

If it sounds too good to be true......

In this case it's definitely a scam. There would be zero increase in performance as the car computer would adjust accordingly to get back to the air/fuel ratio it wants.