AscendantMax

iTrader: (7)

Hey fellas, I got my spark plugs changed today, and while the intake piping was off, I went ahead and had the TB cleaned. We basically took a shop rag and wet it with TB cleaner, and wiped down the butterfly plate, and surrounding areas. It took off A LOT of gunk, and the TB looks clean and new once again.

But now the damn idle is way high...hovering around 1500 RPM in park (and fluctuates between 2000 and ~900 RPM), and when it's in gear, it'll hover around 1000 RPM.

I know there's a certain procedure to reset the idle control? Does anyone know the procedure? Thanks in advance!

Kryogen

Any vacuum leak??? Did you change the intake manifold gasket? Could be that.

Do you hear a leak?

I'm no mechanic but from the symptoms, that would be a vacuum leak.

67 Lamnas

I did the same thing to my TB while changing my spark plugs.....but my idle is normal.....

I bet you left off a vacuum line or you created a vacuum leak somehow..

Go back and recheck everything...there's no need to reset the idle control if everything is back to the way it was before your repairs.....

iMaxSE

iTrader: (4)

Happen to me a few day ago, I tried reseting the ECU, Idle learning and all that stuff even unpluging the batt for 15 mins, but the CEL came back on, I bet u got a P0507 code, rite?.....if not try to do the ECU and the Idle Relearn, if that doesnt work I will hate to tell you this but you will need to replace your TB, when you clean your TB you CANT touch the flap, just got my TB installed yesterday......GL bro....

AscendantMax

iTrader: (7)

yeah i got the P0507 code

I'll try to reset the ECU and what-not tomorrow. Having no garage sucks I hope I dont need to replace the TB (and yes I did open the flap to clean behind it etc)

iMaxSE

iTrader: (4)

Yeah same thing here, having no garage sucks big time, get a TB from a salvage for a min and use Seafoam......Good luck man

twentyeggs

don't worry, you just have a leak. i know it doesn't seem possible because everything looks like its in place, but it isn't, take it all apart and put it back together carefully and thoroughly.. reset your ecu gas peddle method as this resets everything, and you should be back to normal.

wayne6213

i experienced the same thing.
try this : http://www.clubtitan.org/forums/showthread.php?t=3481

dont get frustrated if you dont get it the first time.
took me a while to do it right.

Kryogen

Bah, about TB, im not sure. I opened my flap like 5-6 times and sprayed the **** out of it with carb cleaner and brake cleaner, and everything is fine.....

KevMaster

Don't worry....it will settle down on its own as long as no vacuum leaks there. When I cleaned my TB then it did the same. I was 100% sure I plugged everything back the way it should be so I ignored this and after less than a week, everything went back to normal. I did not even reset ECU. Unless your case is completely different.

Kryogen

I did the reset procedures and its much better now BTW. Smoother idle, less fuel.

AscendantMax

iTrader: (7)

I did the idle reset procedure 3 times today, and the idle is now back to normal! I guess 3rd time was the charm.

Thanks for the replies fellas.

rohanmax14

Anybody know proper way to clean TB n what chemical to used?

Kryogen

ya, use TB cleaner and a rag...
or clean TB on google...

I personally removed the intake collector when doing sparkplugs, and sprayed a full can of carb cleaner everywhere, then a full can of brake cleaner.... looked much better. you should have seen all that black crap.

Will

iTrader: (2)

I found this thread on a search, and I'm just wondering, can either "Carb Cleaner" or "Throttle Body Cleaner" be used to clean our DBW throttle bodies, or are the two different formulations?

I have some Gunk carb cleaner in my garage, but if it's not the right product to use, I'm not opposed to going to Nissan or a local parts store to buy "TB cleaner."

Thx for any input.