Catalytic converter

S

shawn4145!

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Buick Ownership
207 Lucerne cxl
I had a new catalytic converter installed now my o2 sensor light came on why now not before installation
 
Did you check with the shop that did the work to see if they left the wire disconnected?
 
Yea they said it was ok but not sure where is it located I'll check myself both of them
 
Could be the sensor, harness, connector or a cheap converter. A O2 bung extension may help depending on which sensor.
 
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