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Old 05-28-2004, 09:27 AM   #11
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Join Date: May 2002
Location: Laguna Bch, CA
Posts: 4,159

1995 SL2

Can you not have an Oxygen Sensor becoming 'sluggish', cycling slower, or erratically going off line (resulting in the system going into open-loop status), all happening without the system setting a code ? I'm suggesting that when this happens, the air/fuel mixture will go richer, and over time, will result in the egr developing a carbin build up. All of this resulting in a EGR code being set, without any indication of an Oxygen Sensor in the initial phase of failing.

> 95 SL 2 = 653,369 Miles 40.4 MPG, as of 5/20/11. My manual Radiator Fan Switch, courtesy of Wolfman's patient installation guidance, continues to be.......invaluable < The car was retired


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