Mechanics

MY GIVES OUT BLACK SMOKE FROM THE EXHAUST.

1996 Daewoo Cielo • 95,000 miles

I got 2 obd trouble codes 13 and 44.
Both point to oxygen sensor.
could it be bad.
how do I find out and how can I remove it to check.
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Kurush
October 3, 2011.



Removing it will tell you nothing.
A shop with a scan tool can monitor the voltage too see if the sensor is bad or something else causing the motor to run very rich.

Roy