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Old 10-15-2003, 08:02 AM
mbdoc mbdoc is offline
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
California required fuel system fault self diagnosis in their emission program. THAT is the major difference. Also the M103 engine needed an EGR valve for that emission program. The federal version didn't get an EGR valve until 1990 & the self diagnosis was never as good as the Calif version.
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