Please help,

I have a sevice light, and I did comp diag, but did not do it at Nissan. So computer shows 1st bank second sensor (O2 sensor).

Question, does anyone know wich one can it be, and what is the name? part# would help too..

Thank you

Please help.

 

sounds like the first O2 sensor...

 

it is the O2 sensor.... is the code the P0420 or somethng like that. I have read here that even though you have the service light, nothing is wrong... if you take it to Nissan they are going to charge you for sitting your car there for 3 hours, then they are going to say you have this code and need to replace the O2 sensos or the Cat...... you are in the hole $80.00 for just looking at it (In Orlando Florida) and then they will charge you for fixing it like $400.00 or more depending on the dealer..... if they need money to make the payroll........ ohh I forgot about the reflashing of the ECU... (In Florida) $250.00. and you are in the hole $700.00; 6 weeks after , the SES comes back....

Unplug the battery for at leat 2 hours, plug it back... it will go away for a few day.... then it will come back.... and get used to it... I am....

Good luck on whatever you decide

 

I agree with you in most aspects. I dont trust most dealers but you think they would charge $250 just to clear a code? No manual work of changing sensors or cat or parts of course.

 

Thank you, not sure what to do, car runs fine, just that SES is on, it goes on and off. I wanted to change an O2 myself, but don't know with one, and yes Nissan wants $400 to test, part, and reflashing a computer.