Engine Performance problem
2001 Nissan Maxima 6 cyl Front Wheel Drive Automatic
service eng lite on, code po138-po139 po160
where are these sensor located on the vehicle
Tuesday, July 21st, 2009 AT 5:34 PM
1 Reply
STEVEW84
MECHANIC
673 POSTS
P0138 and P0139 has to do with the Bank 1 Sensor 2 oxygen sensor. P0160 has to do with the bank 2 Sensor 2. Depending on how long the CEL has been on for then I would guess both oxygen sensors are bad.