Reply To: 2001 Nissan Quest O2 and Knock Sensors

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#6298

Nanaof4
Participant

I took the van to Autozone and it pulled the following pending codes: P0420 and P0325….Catalyst system below something??? and Knock Sensor. Any suggestions? I think one of the sub catagories for the 420 stated something about “front something or other” so I’m thinking that could be the front catalyctic converter???

Thanks so much for the info!!