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Old 05-28-2004, 12:23 PM   #15
jeep4523
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Join Date: Mar 2004
Location: Cincinnati
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1997 SL2
1994 SL2
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Quote:
Originally posted by Luke
Wolf
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.
I would tend to trust a Factory Trained Service Technitian who used to deal with things like this all the time to know the signs involved with different problems.

A/F messes with fuel delivery, not EGR functions.

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