4.6L General Discussion This section is for non-tech specific information pertaining to 4.6L (Modular) Mustangs built from 1996 to 2004.

idle problem

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Old Jun 16, 2008 | 12:21 PM
  #11  
99 GT vert's Avatar
99 GT vert
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5th Gear Member
 
Joined: Sep 2006
Posts: 4,760
From: Northwest Ohio (Fort Wayne Area)
Default RE: idol problem

thats what i was planning on doing tonight when i got back home
Old Jun 16, 2008 | 02:23 PM
  #12  
stangman1976's Avatar
stangman1976
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Joined: Aug 2007
Posts: 427
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Default RE: idol problem

the idle screw isnt pre set you have to set the idle yourself!!! it's set good enough to start car and run but after it warms up you must adjust the screw
Old Jun 16, 2008 | 02:41 PM
  #13  
cliffyk's Avatar
cliffyk
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Joined: Dec 2006
Posts: 10,937
From: Saint Augustine, FL
Default RE: idol problem

Before you adjust anything disconnect the battery for 5-7 minutes to reset the KAM (Keep Alive Memory); particularly since you apparently started the car with the TPS disconnected. [/align][/align]This is where the PCM stores learned values like idle airand short/long term fuel trims. If you didn't do this when you installed the new TB you should have; any time you mess with anything intake related that isthe MAF, or is after the MAF(I.e. that might actually alter airflow or the measurement of same) you should clear the KAM.[/align]
Old Jun 16, 2008 | 02:57 PM
  #14  
1sloblckgt's Avatar
1sloblckgt
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Joined: Apr 2008
Posts: 1,296
From: Birmingham, Alabama
Default RE: idol problem

I completely forgot to mention that cliffy... It's almost like second nature when I am working on things related to this. Amazing what you forget just because it's so common.
Old Jun 16, 2008 | 04:14 PM
  #15  
99 GT vert's Avatar
99 GT vert
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5th Gear Member
 
Joined: Sep 2006
Posts: 4,760
From: Northwest Ohio (Fort Wayne Area)
Default RE: idol problem

when i was changing it out i had the battery off and then i had it off alday yesterday since i didnt go any were so that is reset
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