Question about 2000 Chevrolet S-10

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I just replaced the catalytic converter on my 2000 Chevy S10, it's still running lean. The engine code shows up, P0171 and black smoke is coming out of the exhaust pipe, and smells like gas from the exhaust. What could be causing this problem?

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  • patricia_ful May 07, 2010

    no i have not done that yet. do you think that is my problem?

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Black smoke is carbon have you changed the o2 sensor's??

Posted on May 07, 2010

  • jason jackson May 07, 2010

    it could be that are the EGR valve the both are for the admissions but the EGR valve helps control the gas and air flow

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Dakota p0171 p0174 taurus


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