Question about 1991 Chevrolet S-10

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Service engine soon light. scan code po44o - 1991 Chevrolet S-10

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  • Anonymous Nov 21, 2008

    It is winter here, around 34 degrees. I just had a fuel pump changed in the blazer as well as my radiator. I stopped, got gas and filled it up. As I was driving all of a sudden my service engine soon light came on.

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Could possibly be an oxygen sensor better known as an O2 sensor

Posted on Nov 29, 2008

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Hello and thank you for using FixYa!

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Thanks Jay!

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