Raising Idle speed?

[Incillio1]

I have a '09 Yaris sedan and want to adjust my idle speed. Is that impossible because of a computer the car runs off of? I just want a little more rpm at idle.

Thanks

[typicaljawaiian808]

Same here

[blacksandiegovitz]

You can adjust the idle screw on the throttle body . Its on the top and its uses a very small allen wrench to adjust it . Im pretty sure you want turn in clockwise to raise the idle rpm . Also you have to adjust with the engine off .

[detroiter]

I looked myself for this screw and didn't find it. I did see a screw that was encased in glue or epoxy, that you couldn't get to though.

[Astroman]

That's it, you need to get the epoxy off. Just make sure to adjust your idle when the car is OFF.

[detroiter]

Can i ask what reason their is to adjust the idle speed or what would cause it to lower? Since it's epoxied in, I just wonder how it could happen and why you would want to change it.

[typicaljawaiian808]

For me, im running a very large sound system and I need to give my aftermarket alternator 1 - 200 more rpm at idle

[typicaljawaiian808]

oh yeah thanks for helping us find that adjusting screw

[Betrivent]

Can somebody please post a picture of where ti is located? I can't for the life of me find it.

[Astroman]

It's located here, although this member replaced his idle screw because he stripped his out I believe. The stock screw is recessed, behind some yellowed epoxy. It's in the same area though, hope this helps.

http://farm5.static.flickr.com/4004/4582647147_af151a5a94_o.jpg

[typicaljawaiian808]

Clockwise or Counter-clockwise to raise the RPM? Thanks again for the help!

[Astroman]

Oh that pic is at the wrong angle, just tip your monitor/laptop on the right side and you'll see exactly where it is :laugh:

[Betrivent]

yeah based on this picture I can tell, thanks! I'll give it a shot tomorrow maybe

[typicaljawaiian808]

I found everything and successfully upped my rpm to ~800 + or - maybe. The sound sysytem seems to be liking it 1,000,000 times better.

I took pics of the whole thing so i'll get those up soon. Thanks to everybody that new what they were talking about!

[umairamin]

My car have also problem with idle and idle is going very slow and car is giving vibration if i change this setting which is covered with epoxy ,will it damage the
throttle body and why company is secure with epoxy?
Thanks?????????????????????

QUOTE=Incillio1;523229]I have a '09 Yaris sedan and want to adjust my idle speed. Is that impossible because of a computer the car runs off of? I just want a little more rpm at idle.

Thanks[/QUOTE]

[umairamin]

My car have also problem with idle and idle is going very slow and car is giving vibration if i change this setting which is covered with epoxy ,will it damage the
throttle body and why company is secure with epoxy?
Thanks?????????????????????

[RedRide]

It's "expoxied" simply so it wont move due to vibrations and it usually does not go out of adjustment.

However, since it is a mechanical adjustment, it can be prone to some wear that can throw it out of spec just like a standard cable actuated throttle.
So, keep in mind that even though it was set at the factory, it stiil may have to to be readjusted depending on conditions.

[Tamago]

turn on your A/C

[Connoisseur_of_fine_cars]

This probably only applies to stick shift Yaris...
I notice that when I turn the A/C on, the idle RPM goes up a little bit, and the throttle is much more responsive from idle than with the A/C off. I sometimes inadvertantly stall the engine, usually when I'm not using the A/C. All my other cars have idle at 800. Did Toyota set it at 600 for some reason? Like emission? Will my car fail emission test if I increase the idle to 800? Will CEL come on?

[Krazzyd]

HI I HAV A 2006 VITZ HATCHBACK I TOOK OUT THE BATTERY WHEN I PUT IT BAK IN THE CAR STARTS TRACKLING LOW AND SHUTS OFF...NEED HELP ASAP PLEASE THANKS

[pabli999]

My Yaris if the idle gets too low the a/c stop cooling and if I put in neutral and accelerate it’s start cooling again. I’ll give a try in that screw to see if work better.