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wont idle without a vacuum leak

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Old Jan 22, 2011 | 12:05 AM
  #1  
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Default wont idle without a vacuum leak

info:

ls1 in my off road racer, howell harness,stockish computer,


fired it for the firts time since it was in my last car. idle really high, big vacuum port on back of intake right by map sensor was unplugged. plugged it back in and it would not start. unplugged it and it starts fine if i plug it dies.


anybody have any ideas
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Old Jan 22, 2011 | 12:59 AM
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From: Turnin' Wrenches Infractions: 005
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Possible faulty IAC valve?
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Old Jan 22, 2011 | 10:07 AM
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where is th iac valve located, that is not adjustable right,

it was also running rich
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Old Jan 22, 2011 | 10:13 AM
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ok so it is right above the tps, if i unplug and it does the same thing then it is faulty right?
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Old Jan 23, 2011 | 10:45 AM
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anybody, help.
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