IDLE Problems

[sergiozarte]

Hello to everyone, I am new to the site and I apoligize if I am posting in the wrong section. I am having problems with the idling on my 2003 sentra se-r spec v. I was told it should idle at around 750 to 800 rpm but mine was at around 1200 and it wouldnt pass smog... so i took it to the mechanic and he told me that the "butterfly" in the throttle body was problably dirty, so i cleaned the inside of the throttle body and since then my rpms just went nuts it goes up and down and it doesnt stay at a certain rpm. Any suggestions of what might have happened? or what is wrong with the car?

[nametakennow]

TPS or MAF are most likely. Try an idle relearn first.

Idle Relearn (do this if your idle is high and/or you get a high rpm code or any code pertaining to the TPS or idle)

- Turn ignition switch OFF and wait at least 10 seconds.- Confirm that accelerator pedal is fully released, turn ignition switch ON and wait 3 seconds.- Repeat the following procedure quickly five times within 5 seconds.a. Fully depress the accelerator pedal.b. Fully release the accelerator pedal.- Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 20 seconds until the MIL stopsblinking and turned ON.- Fully release the accelerator pedal within 3 seconds after the MIL goes off.- Start engine and let it idle.- Wait 20 seconds.- Rev up the engine two or three times and make sure that idle speed and ignition timing are within the specifications.

[sergiozarte]

Thanks I think that should be done by a profesional right?

[nametakennow]

You can do it in your driveway just as easily for free.

[sergiozarte]

thanks man, i actually ended up taking it to nissan and they relearned it in like 25 minutes. it did cost me 100 bucks but its working perfectly now. i hope it doesnt happen again but if it ever does i wil try to do it myself.

[BurtonB15]

this happened to me but when i took it to my nissan dealer they fried my throttle by wire by accident and footed me the bill. go figure

[ABNRML4U]