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.

94 5.0 RUNNING LEAN NEED HELP

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Old 06-05-2007, 09:03 PM
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94gtmax50
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Default 94 5.0 RUNNING LEAN NEED HELP

MY 94 GT IS RUNNING LEAN HOW DO I ADJUST IT OR FIX THAT PROBLEM BEFORE I HAVE A BETTER PROBLEM. AT IDLE IS IS AT 14.5 - 15.0 . AT WIDE OPEN THROTTLE IT IS AT 12.8-13.2 . I THINK IT IS TO LEAN . IAM NOT SURE THAT IS WHY I NEED YOUR HELP THANKS.
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Old 06-05-2007, 09:05 PM
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blackout
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Default RE: 94 5.0 RUNNING LEAN NEED HELP

Chill out your not going to blow your car up, if it's N/A you have nothing to worry about(IE: don't type in caps).
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Old 06-05-2007, 09:06 PM
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mattdel
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Default RE: 94 5.0 RUNNING LEAN NEED HELP

thats about perfect.
idle is a little lean, but its acceptable.
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Old 06-05-2007, 09:15 PM
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samseed101
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Default RE: 94 5.0 RUNNING LEAN NEED HELP

If you really want to add that little bit of extra fuel, you can either get it tuned or you can slightly bump the fuel pressure.
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Old 06-05-2007, 09:31 PM
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ZachW04Stang
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Default RE: 94 5.0 RUNNING LEAN NEED HELP

Thats actually perfect. 14.7 is perfect at idle and at wide open throttle 12.8-13.2 is about perfect. Anything about 14.7 is considered lean buta dangerous lean condition isn't untill 16:1 or 17:1.
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Old 06-06-2007, 10:47 AM
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94gtmax50
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Default RE: 94 5.0 RUNNING LEAN NEED HELP

What should the fuel pressure be at, i have 30lb injectors i have it set to 40 lb and the time is at 12 degress btdc .
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