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post #1 of 10 (permalink) Old 10-09-2004, 03:56 PM Thread Starter
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Bank 1 Sensor 2 - Oxygen Sensor

I ran a test at the local auto parts store and the o2 sensor on Bank 1 sensor 2 is bad. What sensor is that? Drivers after cat?

Thanks
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post #2 of 10 (permalink) Old 10-09-2004, 05:00 PM
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Passenger side.. after the cat.
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post #3 of 10 (permalink) Old 10-09-2004, 06:25 PM
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On any OBD II vehicle, the designations are the same: cylinder closest to the crank pulley is cylinder #1. Chrysler, Ford, Toyota, whoever. The bank with that cylinder in it is bank 1. Sensor 1 is the "upstream" sensor, closest to the head, before the cat. Sensor 2 is downstream of the cat. If there is just one sensor 2 due to the exhaust joining before the cat, it is called B1S2.
Just curious: Is there any chance that the cat is bad/missing/hollow? The PCM compares the up- and downstream oxygen sensor switching rates to determine if your cat is dying (meowww...thump) and a bad sensor, or a sudden change in the sensor's performance, will give the computer fits in this regard. For this reason, you should clear the PCM's memory using the parts store's scan tool, and don't be surprised if it tells you you have a "catalyst efficiency failure" two weeks after you replace the sensor.
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post #4 of 10 (permalink) Old 10-27-2004, 01:33 PM
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ok im a maintance buty i have code P0138, I beleve its the 1/2 sensor reading bad, so its a bad sensor right? would getting a new exhaust system fix this since the sensor is like $160 to $170 or would i still have to replace the sensor.
thanks Shug
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post #5 of 10 (permalink) Old 10-28-2004, 12:00 AM
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Quote:
Originally Posted by shug333
ok im a maintance buty i have code P0138, I beleve its the 1/2 sensor reading bad, so its a bad sensor right? would getting a new exhaust system fix this since the sensor is like $160 to $170 or would i still have to replace the sensor.
thanks Shug
Man, you're in the wrong Forum - this is for 1st gens (yours is a second gen). Usually, changing the exhaust doesn't involve replacing the down-pipe from the cat, which is where your O2S is. But it may just be a false code. Try resetting the computer first ...
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post #6 of 10 (permalink) Old 10-28-2004, 02:14 AM
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$160 for an o2 sensor? what the hell are you buying is it made of gold? lol thre only around $70 or so
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post #7 of 10 (permalink) Old 10-28-2004, 02:17 AM
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Quote:
Originally Posted by gr8crash
$160 for an o2 sensor? what the hell are you buying is it made of gold? lol thre only around $70 or so

I don't even want to pay that, lol! I'm waiting for someone to part out a ride and jump on em'! So uhh, you know anybody like that?
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post #8 of 10 (permalink) Old 10-28-2004, 02:20 AM
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if the vision was obd2 i would send ya the old o2's but it only has pre-cat not post-cat, i'd jsut check out the cheapest price and buy a new one. i got my post cats ones fo rliek $45 or so, so just checxk autozone/pep boys/napa and ge the cheapest one
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post #9 of 10 (permalink) Old 03-29-2005, 04:41 PM
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Sensors only cost 41 bucks if u go to autozone!
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post #10 of 10 (permalink) Old 03-29-2005, 09:28 PM
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hmm lil old post here lol
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