Hi All, I'm perplexed because I have a p0130 for a bad circuit on my O2 sensor, but I'm still showing normal voltage. Any ideas??

https://www.obd-codes.com/p0130

some good info. If your sensor has voltage doesnt necessary mean its functioning properly

Thanks for the helpful response. I think my problem is not actually the sensor but rather a vacuum leak. Was working on my car this weekend and know I left a vacuum leak somewhere, but haven't had time to check my work and find the leak. After reading your post, as well as the following, I will prioritize and look for the leak!:
"The real problem may not be a bad O2 sensor, but possibly an engine vacuum leak, low fuel pressure or dirty fuel injectors that are causing the engine to run lean. An engine misfire, leaky exhaust valve or a leak in the exhaust manifold gasket that allows air into the exhaust may also cause this type of code to be set."