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#1
03-15-2008, 09:18 PM
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How To Fix Heated 02 Sensor Regal
 HI I HAVE A 2001 BUICK REGAL AND I GET A CODE P0141 AND IT SAYS 02 SENSOR HEATER CIRCUIT MALFUNTION ( BANK 1 SENSOR 2 ) HOW TO FIX IT AND WHERE IS THE SENSOR TY V-MUCK ALLTY ALL 4 THE HELP 
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#2
03-15-2008, 09:35 PM
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Re: How To Fix Heater Sensor Regal
Welcome to AF.
The 02 sensor referred to is the one after the CAT convertor which monitors convertor efficiency. It is located right behind the convertor in the dip of the ubend. Spray some PBBlaster on the bung threads with the exhaust warm, remove the electrical connector and using a universal 02 sensor socket with ratchet remove it to replace.
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