u/Left-Froyo-8140

Hey guys - so my truck sat for 2 weeks waiting on a lift kit and new tires - which I installed, and took her out on a voyage to see that the oil pressure gauge read 0 - I think the sensor is bad, it sounded fine and ran fine, but the sensor said 0. It also threw some other random codes when I started, like ABS codes and poor signal from MAF sensors. Has anyone experienced that before? What do you recommend?