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.

PMS system

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Old 10-07-2006, 10:16 AM
  #1  
Stanger90
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Default PMS system

Do the old PMS II's (Programable Management Systems) do everything the new ones do? My bud's friend is selling one and I dont know much about them.
Thanks
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Old 10-07-2006, 10:32 AM
  #2  
Slo5oh
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Default RE: PMS system

They tend to act up....its strange though, cuz its just once a month.

























HAHA
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Old 10-07-2006, 10:36 AM
  #3  
Stanger90
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Default RE: PMS system

So do you think they're worth a couple hundred $, something has to help my surging problem?
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Old 10-07-2006, 11:02 AM
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Joel5.0
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Default RE: PMS system

Set the system right....you don't need a PMS or Tweecer to correct an idle problem...even with an aftermarket cam. Check the system for failure codes, correct if any, and set the base idle right. I've set E, X, B, TFS cammed 5.0's......no problem. You might want to check Grabbem88 experience with his......My 2¢.

PS: Don't fall for the TPS adjustment myth, if the TPS is between .7vdc - 1.0vdc........it's fine.
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