P1272 Air/Fuel Ratio Sensor 1 code

[JPR]

can anyone tell me which one is sensor one ? a pic would be awesome

 

[kernels]

can anyone tell me which one is sensor one ? a pic would be awesome

My uneducated guess is the oxygen sensor, probably the primary one in the exhaust manifold somewhere. Unfortunately they are pricey items. Someone with a list of the fault codes will be along shortly to confirm or deny.

 

[JPR]

Yeah it is a code for an afr sensor. My other ute has 4 of them so was wondering how many these engines have and if it was off the ex mani or the dump pipe.. To be honest I havnt got under to have a look yet ...

 

[kernels]

Usually you would only have 4 lambda sensors on a V6, I haven't checked my D40, but 4 cylinders usually have 1 sensor in the exhaust manifold, and 1 sensor after the cat, to make sure the cat is working.

It's likely to be the exhaust manifold one in your case.

I say all this assuming you have the diesel 2.5

 

[JPR]

Yes mate I was referring to my v6 with the 4 sensors..I do have the 2.5 diesel so I'll check for the one up front. Thanks.

 

[JPR]

Is there an oem parts finder web page for nissans ?

 

[kernels]

You should be able to locate a generic bosch sensor from any reasonable auto electrician, not sure about Nissans, but changed the wife's Honda's oxy sensor recently, Honda wanted about $500, generic from a auto sparky was about $250.

If you take your ute in they can check your old one with a oscilloscope and also cross reference the numbers on it for a generic one.

It would be worthwhile before investing in a new one to just unplug and re-plug the connector a few times, check for melted or damaged wires etc.

You can reset the code with a plug-in obd2 adapter too if you have one.

 

[JPR]

$500 for an o2 sensor is daylight Robbery ! I found aftermarket ones for my rodeo that cost me $54 each ( fronts and rears ) and just spliced it into the old connecter, been working great for over a year now. Might pull it out and check on boshes web site ( if it is a Bosch sensor)
I have reset the ecu several times but fault comes bk after while...
Thanks for the heads up !