P0175 is the code i keep getting, says my car is running to rich, i guess my o2 sensor is bad could i lean it out by addn more boost?

 

Being this code is for bank 2, and you only have bank 1, it seems bogus.
Reset it and see if it comes back.

 

oops the code is P0171 - System Too Lean (Bank 1)actually. I reset it and it poped up the code again... within 20 min

 

Check for vacuum leaks.
"L" and "Y" formed hoses are known to crack.

 

found 2 cracked vac lines, bout 5 feet of new hose, replaced almost every single line under the hood.. now it comes up with the rich code again, but on bank 1 now.. wth lol.

 

Reset it, and see if it comes back. Check to see if your spark plugs are black.

 

what do black spark plugs mean cuz mine are real black?

 

lots of things, carbon build up, light detanation, fouled, too rich fuel mixture.. I checked the plugs, they still are in like new condition, a little fuel smell on them nothing serious tho. I belive its the gas im using ... when i use shell it never throws the code, but chevron seems to make it throw... (i use 93 only)