Idle air problems after throttle body cleaning help!!!!

[Black_pathy07]

So I cleaned my throttle body out the other day my pathfinder has 154k miles on it and after driving it a few blocks my SES light came on. I used the OBDII code reader at my work at it said idle air revolutions per minute higher than expected. Anyone know how to fix this? Please help because I want to get rid of the SES light and my pathfinder is wasting way too much gas!!!!

[Black_pathy07]

Bump! Please help. I read something about an idle relearn? Anyone have any idea what that is or how to do it?

[doctahjones]

might search for a "MAF relearn" type deal, might be a similar issue.

[ShipFixer]

Yeah, most of us learned this way to not clean the throttle body. It's not the MAF really...it's that the butterfly servo learns to open over time with build up, but won't automatically learn the other way when you clean it.

There's a procedure in the service manual to make the ECU relearn air idle. But some of us (like me) can't get that to work and had to take it to the dealership. Takes a few minutes with their computer and you're set.

[Black_pathy07]

Yeah I suppose I'll just take it to the dealership -.- thank you for the responses. Never again will I clean the throttle body on an import car. Lesson learned haha.

[twinblown]

I've cleaned my TB three times and have never had to relearn or reset anyhing. My cleaning involved carb cleaner and a toothbrush. I brushed the entire butterfly inside and outside as much as possible with a rag on the botom of the TB so it soaks up any excess cleaner and does not flow down the TB. I also held the butterfly open with a spark plug socket or similar to reach the inner side of it and brushed thoroughly the sides; I also used a cleaner soaked rag on my finger to reach the botom edges of the butterfly. I never sprayed cleaner deep beyond the butterfly; always sprayed on the tooth brush and kept a rag in inside the TB. So far so good and going strong with 165,000 miles.
I also did this to my Nissan Quest but i learned a lesson here and that is never to open the butterfly while the socket is holding; that is because the TB on the Quest flows a bit down so the socket rolled towards the inside of the intake manifold and thank God I had a telescopic magnet and was able to bring the socket back , what a sour feeling that was.

[ShipFixer]

Then you're lucky. You may be cleaning it before significant deposits occur somehow, but the computer doesn't learn in the other direction...

[twinblown]

I guess I am but maybe it's because I do not remove the TB from the car; always did while on the car. If you unplugg the TB and remove it for clenaing then yes you will need to do the accelerator pedal released position and throtle valve closed position learn.
P.S I.ve cleaned it every 50,000

[Black_pathy07]

So my local nissan Stealership want to charge me $95 for a idle air system relearn, does that sound about right to y'all?

[ShipFixer]

So my local nissan Stealership want to charge me $95 for a idle air system relearn, does that sound about right to y'all?

Seems to be the going rate, although I seem to remember paying $60.