new riviera issues!

Okay everyone its official I own a 1998 buick riviera, now the issue is the e test! i need to drive this car as i just started a new job and the car wont pass the new obd2 e-test. the car is throwing the codes p0140 and p0141 google shows there both oxygen sensor codes my question is where should i start ? any fuses or connections i should look over ?

cheers,
jake!

Congrats on the new riv!
I'm looking at the service manual for those codes and the diagnostic flow chart wants you to scan for some things to determine the performance of the sensor and check wiring/connections - do you have a scanner or some way to read the live O2 sensor information? Also volt meter / multimeter? I wouldn't suspect a fuse because it looks like both oxygen sensors share the same fuse for the heater circuit but it doesn't hurt to check anyway. That fuse is in the IP driver side door jam area - should be a 20A

yeah i have an aeroforce ! bets first mod i ever made to my lss! that's how i scanned for the codes .. any chance you know what the 02's should be reading ? and il check the fuse as soon as i have the time easter has been busy !

fuse is a-okay as you suspected so i guess it comes down to swapping out some o2's shouldn't be too difficult !