Hello all,
I have an 01 Pathy LE with SES light on. Went to AutoZone and got codes read. They said P0171 & P0174 (Both, System too Lean, Bank 1, and 2 respectively). I have read some posts in here to find out that my pathy has 4 O2 sensors??? Can someone tell me which ones these codes are pointing to. Sounds like I have one before and after the cat on both sides. Is this right? Also, checking out websites for O2 sensors shows several OEM with different prices, as well as a universal one. Any thoughts on which I should use to replace the current O2 sensors. Any help is appreciated. Thanks,

Pennywz

When you find out let me know. I have an 01 pathy with the same codes. I need to get my emissions test done and I can't do it with my SES light on.
Do you fill up with the car running?