Question

2005 Nissan Maxima 3.5L SE with code P1238, where is this sensor located?

Answer 1

Hi there,

P1283 is for the bank 1 sensor 1 AF sensor. This is just a different name for the front O2 sensor. With the 1283 code you are looking for the first O2 sensor on the bank closest to the firewall. This is mounted in the exhaust maniold.