Changed spark plugs and cleaned out throttle body, now idling at 1k

GotToyota?

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I changed out my spark plugs last night and gave my throttle body a good cleaning as well since I had to take it out anyways. I sprayed the throttle body down with carb cleaner, and scrubbed down the dirt and grime with a wire brush. All is well, put everything back in. I just now drove it not too long ago, and now I'm idling at 1k, before it was about 600-750ish normally. Also, it takes more pressure on the throttle pedal to geta reaction. Maybe I need to just lube up the assembly on the throttle body?

-Matt
 

89Joe

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Jul 22, 2005
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You probably just need to adjust the Throttle linkage a bit. That or the TPS just needs some turning.
 

johnathan1

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Aug 19, 2005
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Did you seperate the TPS from the throttle body, or did you just disconnect the connector to it?

And it sounds like you probably messed up the throttle plate resting angle when you cleaned it...just adjust the idle screw until you get it to idle @ TSRM spec. which is 700RPM.

Also check for possible vacuum leaks.
 

GotToyota?

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johnathan1 said:
Did you seperate the TPS from the throttle body, or did you just disconnect the connector to it?

And it sounds like you probably messed up the throttle plate resting angle when you cleaned it...just adjust the idle screw until you get it to idle @ TSRM spec. which is 700RPM.

Also check for possible vacuum leaks.
I did take off the TPS, then put it back on after cleaning. I'll mess around with the throttle plate.

-Matt
 

Clip

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like a voltmeter/ammeter/ohmmeter. standard radioshack fare.

stupid thing, but is the A/C on? when mine's on itll be idling around 1200rpm, when off itll rest around 700

multimdi.jpg
 

GotToyota?

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Clip said:
like a voltmeter/ammeter/ohmmeter. standard radioshack fare.

stupid thing, but is the A/C on? when mine's on itll be idling around 1200rpm, when off itll rest around 700
Gotcha, I have one of those. And this is with the A/C off.

-Matt
 

GotToyota?

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Damn it, can't figure this out. Take the car out to make sure it's ok, and it goes back to idling at 1500 RPM. I try to adjust the TPS, barely does anything. I even tried adjusting the idle screw on the AFM, still nothing. This is really frustrating me.

-Matt
 

Clip

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weird. what about disconnecting the battery for a while to let everything reset itself, or would this do anything?
 

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Clip said:
weird. what about disconnecting the battery for a while to let everything reset itself, or would this do anything?
I unplugged the EFI fuse for abit, and nothing changed. Maybe since the TPS is electric it needs to reset itself?

-Matt
 

Clip

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could be, i haven't had to screw with the TPS yet. if you dont have access to the TSRM, just lemme know. ive got a full set sitting here beside me begging to be used.
 

GotToyota?

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Clip said:
could be, i haven't had to screw with the TPS yet. if you dont have access to the TSRM, just lemme know. ive got a full set sitting here beside me begging to be used.
I checked the TSRM, but maybe I'm retarded, and can't find the TPS faq?

-Matt
 

Clip

The Magnificent Seven
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youve tested it like the page fi-100 (engine manual) says? i'm not sure what it could be if you've set it like this states.