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You should be getting better mileage
Posted by Brooks G (more from Brooks G) on Fri, 10 Mar 2006 23:01:06
In Reply to: I just had the same CEL code, JimN, Fri, 10 Mar 2006 08:32:45
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The oxygen sensor is used because the catalytic converter needs a precise amount of oxygen left in the exhaust to do its thing. The oxygen sensors give the ECU the information it needs to set the fuel to air mixture to accomplish this. When the oxygen sensors aren't working correctly, the ECU defaults to a rich setting to prevent damage to your engine. This be the engine start setting which is used before the oxygen sensors warm up enough to function correctly.
Brooks,
posted by 72.132.5...
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