Question about Saturn L300

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2002 Saturn L300 - Having Problem after car heats up and you try to restart. Have Checked OBCD-2 and Scanner and see no problems. Think it is the Front ( before Catalytic Converter Oxygen Sensor???

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Try to post the problem in detail.thank you

Posted on Aug 06, 2008

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The Oxygen sensor on the exhaust manifold/pipe sends a signal to make the fuel mixture richer while the engine is warming up. Once the engine is to operating temperature, it sends a signal to lean the fuel mixture.

If the sensor fails, then signal to lean the fuel mixture is not sent.

Oxygen sensor is recommended to be replaced at 100,000 miles.

From your description, replacing it should resolve.

Posted on Aug 06, 2008

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