What is code 172 and 175 for Nissan 350z?

Code 172 for the Nissan 350Z typically indicates a problem with the heated oxygen sensor (HO2S) in Bank 1, specifically a high voltage signal. Code 175 refers to a similar issue but pertains to the heated oxygen sensor in Bank 2. Both codes suggest a potential issue with the fuel mixture or the oxygen sensors themselves, which may require inspection or replacement to ensure proper engine function and emissions control.