Help w/ Codes 133 and 153

[gto06]

Im getting codes PO133 and 153 (slow response o2 sensor before the cat) I checked the connections and cleaned the MAF. I havent checked the voltage yet but after clearing the codes they come on again at about 80 miles so I imagine they're getting power. Any other options before I replace the sensors? I may just replace one and see if that clears one code to make sure its the sensors.

I also have a very minor leak in the fuel line before the fuel filter under the car..not sure if that has anything do w/ it.

 

[Runnin'OnEmpty]

Generally a slow response O2 code is caused by a 'lazy' or worn sensor, but it's unusual to get that code on 2 sensors at the same time. Was the MIL on for an extended time before the codes were read? Might also be a poor ground circuit that's common to both sensors.....?

The fuel seepage a the filter wouldn't cause the code(s), but you need to fix that one pronto. Minor leaks tend to become major ones, especially at the high fuel pressures the pump puts out.....