Lean reading on A/F ratio Guage?

[fastfive0]

Ok when driving my vehicle for maybe the first half hour the a/f guage always reads rich when under boost. Some times she will hit fuel cut in the upper RPMS when its reading rich. After a half hour she won't hit fuel cut anymore. I noticed though my a/f guage (yes the blinkie one) does not read higher then the last red bar in (lean). But she runs stronger and no fuel cut. I know that you make more power when lean but that too lean is also bad. So is it time for injectors/pump/Safc or maybe just a rewire?

 

[DSMJim]

No it's time for you to buy a new O2 sensor and throw that stupid gauge in the garbage.

 

[fastfive0]

So you think my o2 sensor took a crap?

 

[fastfive0]

anyone else? is my car actually running lean or is it the o2 sensor is just toasted?