Received a P0171 & P0325?

[jeffpd]

I received a P0171 & P0325... Is there a common thread here, or am I looking at two seperate events on my 01 Sentra?

Thanks in advance!

Jeff

[fueler]

This is the Pathfinder / QX4 section.... I don't know what kind of engine the 01 sentra has. p0171 is a lean o2 sensorp0325 is your knock sensor Could be something like a misfire? If you got individual coil ignition, it could be a bad coil. First i would do a good tune up , plugs wires etcclear codes and do a test drive / drive the drive cyclessee which codes come back and let us all know so we can help you further.