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2003 Honda Accord need to locate the 02s21

Tiny
ELOI.CAVAZOS
  • MEMBER
  • 2003 HONDA ACCORD
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 78,000 MILES
May Check engine light is on and we hooked up the computer to tell us whats wrong. There are 4 02 sensors in the car there is 02s11, 21, 12, 22 but I am not sure which one is 02s21 cause thats the one not showing voltage. There are two in front of the engine and two behind it do you have any idea where the 02s21 is?
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Friday, May 22nd, 2009 AT 7:35 AM

1 Reply

Tiny
ZACKMAN
  • MECHANIC
  • 4,202 POSTS
Bank 2 sensor 1 is the one before cat (on the exhaust manifold) in the front closer to the radiator. If the scan showed no voltage, check for possible wiring damage before you replace the sensor.
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Sunday, May 24th, 2009 AT 3:23 AM

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