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Old 02-15-2018   #42
jss06c6
 
Join Date: Aug 2015
Location: Magnolia, Texas
Posts: 884
Default Re: High searching Idle

Quote:
Originally Posted by mike100 View Post
These throttle bodies and the pcv vent bypass too much air an it is hard to get a positive IAC number. I was able to get a value of 10-20 on the iac counts after I restricted the diameter of the pcv hose to the manifold. To make up for the pcv flow at high rpm where it needs the full tube, I tee'd off to a mini filter atmospheric vent.
Mike,

What do we gain trying to hit IAC of 10? If the car idles butter smooth and doesn't stall coming to a stop, what is the "win" with IAC sitting at 10? Just don't understand why we should chase this and suffer top end starvation like you describe.

Steve

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