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Discussing Idle in the 5.0 Mustangs Forum. i cant get my idle normal. i checked for vacuum leaks didnt find any.i ...

       

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Old November 10th, 2006, 09:24 PM   #1
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Idle


i cant get my idle normal. i checked for vacuum leaks didnt find any.i bought a new iac. checked the idle screw. its idles around 1300 rpm i unplug the iac and the idle drops and the car tries to stall. i used the idle screw to set the idle at 600-700 rpm with the iac unplugged and its fine then when the iac electrical connector is put back on the idle shoots right back up.
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Old November 10th, 2006, 10:30 PM   #2
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check your TPS for proper voltage

.96-.98 DC
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Old November 11th, 2006, 03:33 AM   #3
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ditto
 
Old November 11th, 2006, 04:06 PM   #4
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i tried it reads 5 volts constant
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Old November 11th, 2006, 07:52 PM   #5
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try and get it closer to .98 or so. If you have to elongate the holes in the tps to get more adjustment. good luck
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Old November 12th, 2006, 07:13 AM   #6
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Originally Posted by 95opal
try and get it closer to .98 or so. If you have to elongate the holes in the tps to get more adjustment. good luck
+1
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Old November 12th, 2006, 10:43 PM   #7
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http://www.moddedmustangs.com/forums...dle-vt268.html

Please drive through...
 
Old November 12th, 2006, 11:30 PM   #8
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do you leave the idle screw where it is when you set the idle
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Old November 13th, 2006, 10:46 AM   #9
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Originally Posted by terribleonexx88
do you leave the idle screw where it is when you set the idle
Read the write up.
 
Old November 13th, 2006, 05:55 PM   #10
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so i did the whole set the base idle thing it didnt work. i took out the egr plate cleaned the crud out tried to set the idle again. the idle is fine with out the iac hooked up. i set the idle screw but once i plug in the iac the idle goes from 700 to 1300. the iac is brand new. i tried adj. the tps but its a constant 5 volts . one o2 sensor has a wire broke off it so i wanna change the 2 o2 sensors and after that i have no ides. right now i have a steady 700rpm idle with out the iac plugged in .
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Old November 14th, 2006, 03:08 AM   #11
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PISS on the IAC then lol, that is my 2 cents, hell what is the worst that could happen? Does it stay constant when u run the heater or the ac??? It is supposed to help your engine under a load, check these and if it runs great under a load, then run it... U can take my advice with a grain of salt, as I am a newbie lol...
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