Idle Fluctuation due to aftermarket intake?

[El Jefe]

Originally Posted by muncher

its the recirc valve ... uses exhaust air to heat up the air going to the intake

ok lemme straighten some things out in the thread, i see alot of mis-informantion here

ok first off the yaris doesnt have a recirc valve, that is a part from the dark days of emissions control.

the problem the original poster is having is the a/c compressor kicking on and off, it seems like the computer is over/under compensating for the load change. i've noticed this on mine

the only way to fix this will be a reflash of the ecu to smooth the change out. toyota has no released this as yet and i highly doubt they will. it may be annoying but it causes no ill effect to the car as long as it's not stalling out or anything like that.

[Galavoxx]

Originally Posted by El Jefe

the problem the original poster is having is the a/c compressor kicking on and off, it seems like the computer is over/under compensating for the load change. i've noticed this on mine

the only way to fix this will be a reflash of the ecu to smooth the change out. toyota has no released this as yet and i highly doubt they will. it may be annoying but it causes no ill effect to the car as long as it's not stalling out or anything like that.

But I live in San Francisco, I've never even used the a/c. I'm just satisfied knowing that this is a problem with more than just my car. I do agree with you though, I doubt Toyota will ever do a recall to fix the problem.

[El Jefe]

Originally Posted by Galavoxx

But I live in San Francisco, I've never even used the a/c. I'm just satisfied knowing that this is a problem with more than just my car. I do agree with you though, I doubt Toyota will ever do a recall to fix the problem.

how often do you have your car in either of the defrost settings? that also turns the a/c compressor on even tho the little light does not come on.
try it out and let me know, test it with the a/c on or in defrost mode, and then with everything totally off.