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#1
10-18-2004, 10:57 PM
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obII or Ob1 or even a data log??
what scanning tool do I need to do an electronic diagnostic?
1990 lumina 3.1l 
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#3
10-19-2004, 01:17 PM
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Re: obII or Ob1 or even a data log??
to pull codes, all you need is a paperclip jumped across the a-b terminals on the diagnostic link with the key on/engine off and watch the check engine light counting the flashes. IF you're looking for real-time sensor output with the car running, you need a relatively expensive scan tool made by Snap-on, Actron, etc...
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