so i have had my safc2 installed for a good 6 months or so and recently i have started to have some car troubles. so i sarted going through all of my sensors and while i was doing a sensor check i nottice in-1 was at 1.2v which im pretty sure is not normal and then when i gave the car some throttle it sky rocketed to 3.5v. acoording do javageeks diy it is soppused to decrease voltage to .090 when throttle is at 100%.

this may sound like a noob question but does that mean my primary o2 sensor is bad?
i have been battling it out with my car to get to run right.

any help would be nice