DIY - 1.8L 1ZZ-FE TB Connector Chip Swap - Toyota Yaris Forums

Gideon · 05-10-2009, 07:50 PM

Maybe you have a bad TB or the idle screw was messed with too much? (I didn't bother touching mine.)

I never did the chip swap on mine (too lazy). Coolant bypass (didn't bother to bleed it) and only have high idle when cold and of course my CEL is always on. (For about 700 miles now)

Mine does stick a bit it seems, RPMs hang for a few when slowing quickly to a stop (usually to go over speedbumps).

No oscillation, except when I first installed it. That was fun trying to avoid looking like a douchebag revving at every light. (For the 100 miles I had that issue I would just put the car into gear quickly to bring the car's RPMs down to normal and then release.)

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05-10-2009, 07:50 PM	#11
Gideon ★weeaboo★ View User's Garage Drives: 2008 Bayou LB Join Date: Oct 2008 Location: Sunnyvale, CA Posts: 661	Maybe you have a bad TB or the idle screw was messed with too much? (I didn't bother touching mine.) I never did the chip swap on mine (too lazy). Coolant bypass (didn't bother to bleed it) and only have high idle when cold and of course my CEL is always on. (For about 700 miles now) Mine does stick a bit it seems, RPMs hang for a few when slowing quickly to a stop (usually to go over speedbumps). No oscillation, except when I first installed it. That was fun trying to avoid looking like a douchebag revving at every light. (For the 100 miles I had that issue I would just put the car into gear quickly to bring the car's RPMs down to normal and then release.)