Question about 1998 Pontiac Grand Am
Code is not for heater circuit,
code p0141=O2 Sensor Heater Circuit Bank 1 Sensor 2
that means its an oxygen sensor located in bank 1 which is the drivers side,sensor 2 means its the downstream sensor after the convertor
Posted on Nov 24, 2009
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Posted on Jan 02, 2017
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Jun 24, 2017 | Ford Cars & Trucks
Oct 14, 2016 | Cars & Trucks
HO2S-21 (Bank 1 Sensor 1) Heater Circuit Malfunction
HO2S heater control circuit is open or shorted to ground.
HO2S heater power circuit open between the heater and PCM.HO2S heater is damaged or has failed.PCM has failed (it controls the heater with a duty cycle signal).The sensor is on the passenger side,that is cylinder number one.
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