: 96 Seville where's the 02 Oxygen Sensor Location?? PLEASE HELP WONT PASS EMISSIONS!!!

07-10-09, 12:30 PM
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

07-10-09, 12:35 PM
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.

07-10-09, 12:37 PM
This is close to yours........

04-04-10, 02:34 PM
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.

04-04-10, 04:33 PM
He fixed it - this thread is 9 months old.