Replaced o2 sensor and fuse still getting P0031 code
#1
Replaced o2 sensor and fuse still getting P0031 code
So Just as the title says. I swear my 2004 Z knows I am getting ready to sell it, and I already picked up an 08 350Z for the track
So my car just passed 100k and all of a sudden that favorite SES light came on. I hook up my scanner and got code P0031. Replaced the upstream o2 sensor (Bank 1 Sensor 1). Still had problems and returned sensor and got different sensor. First sensor was from "auto parts warehouse" and second sensor was BOSCH sensor from Autozone. Then replaced 15A fuse hoping that fixed it. Still getting SES light and code P0031.
Completely lost for what could be possibly wrong. Never had a simple code like this not go away. Anyone with similar problems or suggestions on how to fix this please!!!! Its too the point to where having my car stolen or simultaneously combust would be a relief.
So my car just passed 100k and all of a sudden that favorite SES light came on. I hook up my scanner and got code P0031. Replaced the upstream o2 sensor (Bank 1 Sensor 1). Still had problems and returned sensor and got different sensor. First sensor was from "auto parts warehouse" and second sensor was BOSCH sensor from Autozone. Then replaced 15A fuse hoping that fixed it. Still getting SES light and code P0031.
Completely lost for what could be possibly wrong. Never had a simple code like this not go away. Anyone with similar problems or suggestions on how to fix this please!!!! Its too the point to where having my car stolen or simultaneously combust would be a relief.
#2
New Member
Stick with OEM O2 Sensors. Aftermarket stuff's given me more headaches. Have a look at your sensor wiring. You may be shorting out somewhere.
#4
Never had something so simple like an o2 sensor give me such a big headache
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#11
New Member
iTrader: (1)
ran into the same problem when I first bought my 08 Z earlier this year- I had the same codes, replaced the sensors, and code persisted. It turned out to be a crack on the OEM cat, near the mounting bracket, left (drivers) side. Replaced both cats with Berk's HFC, codes gone. Code free for 6-months so far
#12
ran into the same problem when I first bought my 08 Z earlier this year- I had the same codes, replaced the sensors, and code persisted. It turned out to be a crack on the OEM cat, near the mounting bracket, left (drivers) side. Replaced both cats with Berk's HFC, codes gone. Code free for 6-months so far
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