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

ser. eng. soon light is on after upgrades

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Old 02-01-2007, 05:26 PM
  #11  
TOOT
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Default RE: ser. eng. soon light is on after upgrades

Does any one know of a web site that has a listing of eng. problem codes?
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Old 02-01-2007, 05:26 PM
  #12  
Dan04COBRA
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Default RE: ser. eng. soon light is on after upgrades

No. People easily cross the wires for the O2's all the time. Fix it yourself.
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Old 02-01-2007, 05:29 PM
  #13  
uberstang1
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Default RE: ser. eng. soon light is on after upgrades

its not necessary to buy new 02 sensors with a new pipe, he may of been thinking of extensions depending on the new exhaust setup
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Old 02-01-2007, 05:52 PM
  #14  
V1PWRED
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Default RE: ser. eng. soon light is on after upgrades

MIL eliminators will fix everything...
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Old 02-01-2007, 06:02 PM
  #15  
beastzilla02
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Default RE: ser. eng. soon light is on after upgrades

my light is on as well and my gas mileage is terrible.
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Old 02-01-2007, 07:05 PM
  #16  
TOOT
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Default RE: ser. eng. soon light is on after upgrades

I was up under there Tues. and all the sencors were connected and nothing was loose.
If I knew what to fix then yes I'd fix it my self in a heart beat!
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Old 02-01-2007, 08:11 PM
  #17  
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Default RE: ser. eng. soon light is on after upgrades

I was toldthat it might have something to do with the HypeTech programmer and to return to stock settings then rescan for codes.
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