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.

Check Engine light after some changes

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Old 06-26-2007, 01:38 AM
  #11  
nacanitihs
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Default RE: Check Engine light after some changes

clean ur MAF and make sure it is connected right first. also that 67 code will prob go away if you push the clutch in when you take the codes and that wont cause a CEL (i think) the code went away when i checked mine... but i still have the 31...
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Old 06-26-2007, 11:27 PM
  #12  
goathead75
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Default RE: Check Engine light after some changes

I ran a diag and got code 98 and 66 now. Would I be getting 98 because of the mass air? Also she's running VERY rich now.
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Old 06-27-2007, 12:15 AM
  #13  
Joel5.0
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Default RE: Check Engine light after some changes

Yup.....unfortunately.....do the tests shown below and LUK the results......


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Old 06-27-2007, 12:22 AM
  #14  
goathead75
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Default RE: Check Engine light after some changes

Run the test with the key on I'm assuming?
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