5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

ROUGH IDLE NEED HELP

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Old 08-30-2007, 01:00 PM
  #1  
joa1972
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Default ROUGH IDLE NEED HELP

1993 5.0 306, with anderson heads, cam and intake kit. 30 lbs. injectors, MAC cold air fender kit, 75mm bullet mass air. Having problems getting the car to idle correctly. I have been told to move the mass air position to 1 o'clock or 3 o'clock and it seems to be only a temporary fix. p-lease any suggestions......

Jeff
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Old 08-30-2007, 01:09 PM
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86GreenMachine
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Default RE: ROUGH IDLE NEED HELP

have u tried a base idle reset?
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Old 08-30-2007, 01:14 PM
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joa1972
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Default RE: ROUGH IDLE NEED HELP

Yup, and still having the same problem.
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Old 08-30-2007, 01:20 PM
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mattdel
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Default RE: ROUGH IDLE NEED HELP

GET A TUNE
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Old 08-30-2007, 02:39 PM
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joa1972
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Default RE: ROUGH IDLE NEED HELP

Of course that woulb be the best option. But the problem is i don't want the car to be in a shop for 1 week and then battling to see what the problem might be.
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Old 08-30-2007, 02:46 PM
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mattdel
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Default RE: ROUGH IDLE NEED HELP

there is only so many options before it comes down to a tune issue.

TPS, IAC, intake vacuum leaks, fuel delivery problem at low RPM, or the tune.
thats about it.

if i was local to your car, i could have your problem figured out in a half hour, with a multimeter and a can of ether.
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Old 08-30-2007, 03:37 PM
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Joel5.0
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Default RE: ROUGH IDLE NEED HELP

Start with the most basic step....gather the data, run a set of DIY KOEO and KOER self-tests.
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