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Oxygen sensor

Tiny
ROBERT MENEZES
  • MEMBER
  • TOYOTA PICKUP
2003 Toyota Tacoma V6 41,000 miles.
My check engine light recently came on. I hooked up my code reader and it read a bad oxygen sensor. I have a sensor right before the converter and one after. How do I know which one is bad?
Tuesday, November 20th, 2007 AT 3:33 PM

4 Replies

Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
TRY ANOTHER KEY
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Wednesday, September 12th, 2007 AT 8:41 PM
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
What is the code #
it should tell which one
post the code for more help
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Tuesday, November 20th, 2007 AT 4:26 PM
Tiny
ROBERT MENEZES
  • MEMBER
  • 2 POSTS
What is the code #
it should tell which one
post the code for more help[/quote:0484c05dc4]

Code reader read "PO136 O2 sensor circuit malfunction (Bank 1 Sensor 2)
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Tuesday, November 20th, 2007 AT 6:43 PM
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
What is the code #
it should tell which one
post the code for more help[/quote:7be3c41535]

Code reader read "PO136 O2 sensor circuit malfunction (Bank 1 Sensor 2)[/quote:7be3c41535]

SENSOR 2 IS AFTER THE CONVERTOR
BANK 1 IS THE SIDE THAT CYL # 1 IS
CHECK FUSES BEFORE CHANGINE SENSOE AND CHECK THE WIRE AND CONECTION
GOOD LUCK
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Wednesday, November 21st, 2007 AT 12:54 PM

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