throwing codes p0171,p0174 ?

[texas1]

from what i looked up it could be either my 02sensors or a vac leak insight is needed trying to save money and fix myself saving for a tune and 4.10s

[SC Cheesehead]

First thing I'd do is disconnect you battery for 10 minutes to clear the code, then re-connect and start up the car and see if they return.

[EMAS]

It is unlikely that both front O2 sensors failed at the same time. So a vacuum leak or any air leak after the MAF could cause the problem. So look for any disconnected or rotted hoses. A dirty MAF can also cause this code, w/o a related MAF code, so picking up a can of CRC MAF cleaner and cleaning it is a good idea.

[texas1]

ok cleared the codes thanks.

[Black&Gifted]

If the above suggestions did not remedy the issue: (1) do you have a tune; and (2) have you done any major exhaust (e.g., LT headers w/cat delete or high-flow cats)?

[bigmerc'03]

02's life spand is only about 50000 miles goto rock auto.com you can find them for a good price there and yes mine was throwing the same codes when the 02's went bad they dont show any sign except throwing rich codes and similar codes

[bigmerc281]

Canobd2.com great resource to get definitions for codes

[SC Cheesehead]

So, OP, what's your current status?

[LANDY]

Did you put leaded fuel in the car?