i was told i needed to get my throttle body cleaned out by nissan because my car wasnt performing very well, so i had it done a week later my service light came on, the computer said i have a "High Idle" so i was told i had to change my throttle body which i did but i still got the same problem, my mechanic said my MAF sensor is fine. dont know what to do any suggestions.

 

so let me get this straight..... you replaced your throttle body because you had a high idle?

 

Did the dealer tell you it threw a high idle code? Sounds like your throwing the code known as "The Stealership is robbing you blind".

 

HIgh idle code is caused by a bad throttle body, they cost like 1100 bux list price new. 02-up have the "wonderfull" drive by wire that CAN cause alot of problems in the future with drivability, Audi comes to mind when their throttles go bad after 3-4 years of usage. I would make the dealer eat the throttle body if they cleaned the throttle with a tooth brush and bent the butterfly while trying to keep it open- which is probably what happened. I think Maxima Polak did the same thing one time and ended up getting a new throttle body for his car under warranty.

 

What do you mean "i had to change my throttle body which i did"? Did you replace it yourself?

Even if the dealer did the repair, try the IAVL procedure in the sticky above. It has helped a few that had this happen after a TB fluckup.

I've read WAAAAAY too many TB cleaning horror stories lately, especially you 2K2+ drive-by-wire guys. That servo motor must be a touchy SOB. One guy even had to replace his ECU after a botched TB cleaning.

Leave well enough alone, I say.