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  • 1996 - 2004 SN95 Mustang -General/Talk-
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what exactly does...

  • Thread starter Thread starter 1of2000
  • Start date Start date Apr 26, 2005
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1of2000

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Jun 16, 2004
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Between the Appalachians and the Atlantic
Apr 28, 2005
#21
  • Apr 28, 2005
  • #21
you mean more then just looking at my gauge? it says 31psi.
Another reason I think its rich is cuz when it was idling on the dyno, the A/F was around 11, 11.5 (rich) with the idle loping.
When I unplug the IAC tube, the idle evened out and the A/F went yellow/red (lean).
So, that tells me the rubber tube on the IAC is restricting the additional air that would otherwise make the A/F ratio leaner and actually IDLE!
Any ideas?
 

jstreet0204

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Jun 26, 2003
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Winston Salem, NC
Apr 28, 2005
#22
  • Apr 28, 2005
  • #22
1of2000 said:
you mean more then just looking at my gauge? it says 31psi.
Another reason I think its rich is cuz when it was idling on the dyno, the A/F was around 11, 11.5 (rich) with the idle loping.
When I unplug the IAC tube, the idle evened out and the A/F went yellow/red (lean).
So, that tells me the rubber tube on the IAC is restricting the additional air that would otherwise make the A/F ratio leaner and actually IDLE!
Any ideas?
Click to expand...

That is starting to make a little more sense, If you IAC is sticking closed it would not let th air in until you opened the thottle. I would take it off and look at it and try cleaning it or replacing it.
 
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