2004 350Z, 55K miles, no codes before. Filled up with Shell premium gas and SES light came on when I got up to speed. Stopped at AAP and they checked for codes resulting in four: P1031, P 1051, P1148, and P 1168. According to the AAP guy, he said these codes are probably computer (ECM) related and I should go to the Nisaan dealership for correct diagnosis and repair. The codes actually indicate problems with the a/f and oxygen sensors in both bank 1 and bank 2. Is it possible all these sensors failed at once, or is the AAP guy correct and these are probably computer related. I also wondered about the coincidence with the fuel fill up and if the gas may have triggered the code somehow. I think I can replace the sensors myself, but dont want to spend the bucks to fix, then still have the codes because its computer related. My thought is to take to the Nissan dealership and pay them the $90 to diagnose and tell me the repair, but wanted advice from others who may have seen these codes together before. Thanks.
Codes on 350Z
- Thread starter cwing6
- Start date
- Status
2004 350Z; MIL "ON" WITH DTC P1031, P1051, P1148, P1168 A/F SENSOR HEATER / CLOSED LOOP
Your 350Z requires ECM reprogramming. The dealer will charge for 0.8 hours of ECM reprogramming.
Your 350Z requires ECM reprogramming. The dealer will charge for 0.8 hours of ECM reprogramming.
The TSB states that if the A/F sensors are found to be faulty, there is additional diagnosis to be performed. Though since they were working fine previously, it'd be logical to assume that only ECM reprogramming will be necessary.
They can simply check the switching speeds on the sensors and tell instantly if they are good or bad.
Oh boy, a visit to the stealership!
Oh boy, a visit to the stealership!
Ahh, yes.... dealing with the stealership. I called them this afternoon to discuss bringing the car in. When he asked what was wrong, I started to explain the SES light, pulling the codes, and he just interrupted me basically saying he didnt care what I had to say about the codes, just bring it in and they will fix it. I said I'll check my calendar and call you back, then hung up as I heard him backtracking and sort of apologizing for jumping on me. Guess I'll be looking for another stealership to fix the car in the next town over. ARRRRRRRRRRRGH!
Yes, their WORST enemy is an educated/knowledgeable customer!!
- Status
