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1996 Seville STS
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13 Posts
Discussion Starter #1
Hello, Today I went to get my car's emissions test and it failed. My car is a 1996 Seville STS. They told me it failed because of a bad O2 Sensor. The diagnostic trouble code is P0133: O2 Sensor Circuit slow response bank 1 sensor 1. I plan on replacing this myself but have no idea which O2 sensor this bank 1 sensor 1 is located. Can someone please help me out, If the car doesn't pass emissions then it cant get registered. Thank you for your time
 

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2010 DTS
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87,553 Posts
Bank One is the right bank (firewall side). Sensor One is the first one in line. It is on the exhaust manifold (and the hardest one to get at). Sensor 2 would be the Pre Cat senso and sensor 3 is the Aft Cat sensor.
 

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2002.5 F55 CORSA STS, 2014 Explorer XLT FWD
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71,043 Posts
This is close to yours........
 

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1996 Seville STS
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141 Posts
That one is located in the exhaust manifold. It is on the top of the manifold. To get to it, I would remove the ignition coils and the blower motor. It is actually directly below the blower motor. They can be removed with a deep well socket or O2 tool. I find it easier to install them with a crows foot tool.
 

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2002.5 F55 CORSA STS, 2014 Explorer XLT FWD
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71,043 Posts
He fixed it - this thread is 9 months old.
 
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