Need help finding rear o2 sensors
09-05-2005, 05:38 PM
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Need help finding rear o2 sensors I found 1 o2 sensor where i put in 1 simulator. It was in front of the h pipe. As for the second o2 sensor, i do not see it anywhere. My 2002 WS6 LS1 trans am does have 2 rear o2 sensors right?? I found the 2 front o2s. I need to find the other so i can put in the other simulator and so that damn SES light goes out.
09-05-2005, 06:52 PM
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First of all, my system has no cats, 3'' LT to a 3'' h pipe. I only saw 1 sensor bundle (disconnected) tucked up near the tranny, there is 1 on each side of each header, 1 more that is (hard to see) up towards the motor. 4 total. So what 2 make up the rear o2s?
09-05-2005, 07:05 PM
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The pre cat sensor connectors are real close to the engine. There should be extensions plugged into them or else the wires extended to reach the pre-cat O2s with headers. The -original- connectors for the post cat O2s come up over the trans I believe, in any event will be the longest O2 sensor -original- wiring. Get the car up in the air and check it out, you will figure it out.
Last edited by gwj; 09-05-2005 at 07:13 PM.
