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1997 E300 CODES P0400/P0120
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12-02-2013, 08:02 PM
rodm
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Join Date: Oct 2009
Posts: 136
Just to close this thread....it was one of the vacuum lines off of the intake manifold that was not connected. Upon checking the vacuum lines that were accessible some were brittle so all were changed as well....Codes went away.
rodm
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