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Old 11-08-2019, 09:38 PM #16
4runnerChippy 4runnerChippy is offline
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Quote:
Originally Posted by Bad Luck View Post
If you did this before the engine was at operating temp or within a couple minutes of restarting it when it was at/close to temp, then it's normal operation for the IAC. If your idle does not drop to 700 rpm +/- 50 rpm with the ac off once the engine is warmed up then you have an air problem. Not necessarily an IAC problem. 1500 rpm +/- 100 rpm is normal for warm up idle in park or neutral. This information is from a 2000 factory service manual.

What codes do you have?
I had a lean bank 1 code after changing fuel injector o ring. Since I did everything that code hasnít come back yet. The high idle is whatís lingering. I donít remember it doing it before I replaced the oring the first time. As of now there are no codes
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Old 11-11-2019, 10:23 AM #17
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Quote:
Originally Posted by 4runnerChippy View Post
I had a lean bank 1 code after changing fuel injector o ring. Since I did everything that code hasn’t come back yet. The high idle is what’s lingering. I don’t remember it doing it before I replaced the oring the first time. As of now there are no codes
What's the idle before the engine warms up? Around 1400-1500 while in park with the ac off?
What's the idle after the engine warms up? Around 700 rpms while in park with the ac off?
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Old 11-12-2019, 12:41 AM #18
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What's the idle before the engine warms up? Around 1400-1500 while in park with the ac off?
What's the idle after the engine warms up? Around 700 rpms while in park with the ac off?
Yah sometimes 700 sometimes 900. But it smells rich.
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Old 11-12-2019, 09:36 AM #19
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Yah sometimes 700 sometimes 900. But it smells rich.
What are your short term and long term fuel trims once warm? The rpms I listed above previously are entirely normal operation.
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Old 11-15-2019, 03:35 PM #20
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I FIXED IT! i think. for now atleast.

So i put the new IAC on with no change still high idle. Angry and irritated i left it alone to start reading again. Thats when i remembered i bought a new MAF sensor month back. So i thought what could it hurt, even though i didn't think that it would work. Well what do you know! Idle is down to 950. I also found a vacuum leak from PCV to intake manifold, under that black foam piece, so ordered a new hose! Real test will be to see what it does when cold.
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Old 11-15-2019, 03:52 PM #21
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MAF and Vacuum leak can do it.. I do hope it works.

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Old 11-25-2019, 05:57 PM #22
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well new vacuum hose on, and it idles about 1100 in park and neutral. When in drive or revers 800 ish. No engine lights on yet so ill drive it around and see if i can get it to smog.
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