4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

running lean

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Old 11-25-2004, 08:14 PM
  #1  
Eskine
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Default running lean

does anyone got an idea why bank 2 is running lean by an chance
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Old 11-25-2004, 09:28 PM
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Chopper
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Default RE: running lean

Bad O2 sensor??Intake leak??EXhaust leak??
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Old 11-25-2004, 09:43 PM
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Redline03GT
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Default RE: running lean

If the car is stock then theres a good chance the computer is misreading the bank because of a fouled plug or an O2 sensor or something. Also your injector for that bank could be bad. Check the spark plugs and make sure that you really ARENT running lean, cause that would be a bad thing...
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Old 11-26-2004, 12:42 AM
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Eskine
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Default RE: running lean

i got newer plugs and wires and had to put a new intake on it but exhaust is leaken a little before but why would it come on now if that was it
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Old 11-26-2004, 02:10 AM
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stonemonk9
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Default RE: running lean

wat would the plug look like if lean?
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Old 11-27-2004, 12:07 AM
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Eskine
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Default RE: running lean

they would look white i belevie, BUT FU*kIN A, i drove around for a little and they car seem to get louder exhaust wise and its all stock exhaust so i drive home get out of the car and the exhaust burned its self up cause they dam car leaned out so bad melted my dam cats and this isnt the first fing time other(happen on my other car). this **** pissed me off[:@]


could any one tell me why it is running lean now[:@]
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