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Scion xB 2nd-Gen Drivetrain & Power Engine and transmission discussions...

Adjusting idle?

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Old Jun 21, 2011 | 06:39 PM
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Default Adjusting idle?

Just a quick ? for everyone. I have the ggp motor mount in my xb2, and love it. My only problem is, from 550 to 800 rpm....it vibrates like a mother.

Im curious if anyone knows how to adjust the idle in our cars? My old car was a simple screw that moved the throttle plate and cable to adjust the resting idle. Unfortunately...I don't see anything like that!

Anybody?
Old Jun 21, 2011 | 11:27 PM
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Thats how it was on my old Hondas too, I loved how simple they were to work on lol. I would like to know how to do this as well.
Old Jun 22, 2011 | 12:42 AM
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I've just spent an hour+ trying to determine if there's a mechanical or electronic adjustment that will modify the ECU handling of the throttle actuator and position sensor from programmed standard, and I'm drawing a complete blank. There's definitely no adjustment at the TB, and reviewing the test procedures for the 2AZ-FE in the Camry, there doesn't appear to be any over-ride (perhaps there's some offset adjustment at the pedal position sensor, but I doubt it). The idle appears to default to a full current cut to the TB actuator resulting in a return spring pulling the throttle plate back to a 6 degree angle. Maybe you can find some Toyota tech that knows some trick, but it's not looking good.
Old Jun 22, 2011 | 02:09 AM
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:facepalm:

Thanks for checking trevor, thats what I was afraid of.
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