Has anyone done a knock sensor replacement on the 3.3 l engine? I see it behind the distributor and looks like i can get to it by removing the distributor assembly but I may be wrong.
Also the p0325 (knock sensor) code is accompanied by a p0158 (o2 sensor). Would the p0158 trigger a p0325?
Thanks in advance for any input!

the knock sensor is a common code in nissans, its easy to trigger. Try clearing the code, see how soon it comes back. I get that code once every few years and i just clear it and forget about it....

o2 sensor is unrelated to knock.... reset that too and see if it comes back, otherwise you might want to replace the sensor for best performance and fuel mileage

It comes on about one month interval.

jhong1226 wrote:It comes on about one month interval.

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Check your fuel rack gasoline pressure it may be low then try to adjust your timing to retard a very few degrees watch it and then try to advance just beyond static normal and watch it. What gasoline are you using, if high test you may be fouling the engine with carbon. Try mixing a 1/2 can of seafoam in the fuel tank with a full tank of gas, do not over use the seafoam, better to mix a little many times than to have too much at a single time.

jhong, were you able to resolve this? I have the exact same error codes as you (p0325 & p0158) and was wondering what your outcome was.

It seems like the oxygen sensor is an easy replacement, but I am wondering if the knock sensor needs attention as well or if I can ignore it as some here have suggested.