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O2 Fault Codes


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I'm hoping someone can help me understand the possible problems with my issue. my 2004 lambo G is throwing O2 fault codes. At first I thought it was odd because All 4 of the O2 sensors were just replaced 3 months ago, but regardless I just replaced the 2 sensors throwing the codes. However, after clearing the codes multiple times and driving the car(in hopes of clearing the codes) I still cannot get the O2 sensors to stop throwing the error codes.

 

Dashboard shows the "1-5" error warning.

ECU error codes:

P0131 - O2 Sensor Circuit Low Voltage Bank 1 Sensor 1

P0140 - O2 Sensor Circuit No Activity Detected Bank 1 Sensor 2

P0141 - O2 Sensor Heater Curcuit Bank 1 Sensor 2

 

As mentioned, because of these errors I had both sensors on Bank 1 replaced again but the codes come back quickly after clearing them. I was also thinking it could be a tripped Relay so I looked in the fuse box behind the passenger seat and checked most of the relays and they looked fine. I am wondering if there is relays somewhere else for the O2 sensors that just need to be replaced? Otherwise I have no idea what the issue could be and I appreciate any help!

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