Who here has this happen, or either knows what is the cause. Have a 99' SE, while waiting for my car to warm up it will go through it's choke cycle and then idle down. It runs smooth but I noticed it will randomly kick up idle for a mili second and go back to normal Idle. If I'm at a stop light I can sometimes catch it doing this.
This is a random thing, the car runs fine, has no other noises. Please let me know if you have any Positive Feedback.
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Trajiksmax

 

Sounds like a sticking IACV - clean it out and clean out the TB while you are at it.

See stickies for more info.

 

I have the exact same thing, ALWAYS AT RANDOM. I have cleaned IACV, throttle body, new spark plugs, bought 6 used coil packs and still the same thing.....next thing i might try that someone mentioned in a different thread is a new TPS from autozone or somewhere. Also. I have made sure that the ECU screw is all the way to the left(be careful with this)