95 chevy astro(IAC)

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librahome@adelphia.net - 20 Mar 2007 02:47 GMT

I was woundering if someome can help me. The check engine light comes
on and I read a code (35) iac can not control idle. I have replaced
the IAC and reset the computer but it still comes on at idle. Does
anyone now what the normal operating perameters are for the IAC? I do
own a scan tool and can see live data but dont know what normal should
be.

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aarcuda69062 - 20 Mar 2007 05:23 GMT

In article
<1174355226.835581.172160@e65g2000hsc.googlegroups.com>,

> I was woundering if someome can help me. The check engine light comes
> on and I read a code (35) iac can not control idle. I have replaced
> the IAC and reset the computer but it still comes on at idle. Does
> anyone now what the normal operating perameters are for the IAC? I do
> own a scan tool and can see live data but dont know what normal should
> be.

What is the idle RPM in;
neutral
drive
What is the IAC count in;
neutral
drive

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Steve Walker - 20 Mar 2007 23:00 GMT

Check for a vacuum leak or faulty EGR valve (not EGR controller). Too
big of a leak, and the IAC cannot control the idle speed. Is it idling
higher than normal?
If it is idling slower than normal, your fuel pressure may be too high,
(various causes), and the IAC cannot compensate for it.

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Steve Walker
Fusion640@verizonwallet.net (remove wallet to reply)

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