what about this kit would NOT work for the yaris? - Toyota Yaris Forums

Gideon · 04-25-2009, 02:54 PM

This is true, although our ECU likes to learn and xB does not? That's enough of a difference if it's true I would think to mess up the piggyback.

Tamago · 04-25-2009, 02:57 PM

Quote:

Originally Posted by Gideon

This is true, although our ECU likes to learn and xB does not? That's enough of a difference if it's true I would think to mess up the piggyback.

no, xa/xb ecu's are re-learning ecus as well. a proper wiring job and volt clamping of the o2 sensor and/or MAF will easily trick the stock ECU into thinking it's seeing stoichiometric all the time, and will not fight your +/- piggyback tuning.

Gideon · 04-25-2009, 02:58 PM

Quote:

Originally Posted by Tamago

no, xa/xb ecu's are re-learning ecus as well. a proper wiring job and volt clamping of the o2 sensor and/or MAF will easily trick the stock ECU into thinking it's seeing stoichiometric all the time, and will not fight your +/- piggyback tuning.

Oh. Well sweetness.

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04-25-2009, 02:54 PM	#1
Gideon ★weeaboo★ View User's Garage Drives: 2008 Bayou LB Join Date: Oct 2008 Location: Sunnyvale, CA Posts: 661	This is true, although our ECU likes to learn and xB does not? That's enough of a difference if it's true I would think to mess up the piggyback.