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Old 09-11-2002, 08:29 AM
mbdoc mbdoc is offline
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
First of what model & year car?? Most of the engines with ME fuel systems will read negative O2 sensor voltage, but they will cycle to positive as well.
ALSO depending on year model universal sensors WON'T work properly. Even a 1997 E320 uses different sensors than a 1996.
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