Check engine light has been on for a couple days now and I had to bring it in for an emissions test--obviously it failed and these are the reasons why:
P0325: Knock Sensor 1 Circuit (Bank 1 or Single Sensor)
P0151: O2 Sensor Circuit Low Voltage (Bank 2 Sensor 1)
Does anybody know what to do??
It's an Xterra SE if that makes any difference.
Thanks!!