Is there a diagram showing the knock sensor on a 2001 maxima

go here: http://parts.nissanusa.com/nissanparts/index.cfm?bodyColor=&trimColor=&BODY=W&ENGINE=VG33E&EMISSION=GXE&TRIMLVL=GXE&TRANS=AT&action=replacement&groupid=D&sectionid=226&partcode=22060P&jointvehid=10541&makeid=25&siteid=14&illust_seq=01

This will show you the diagram of where it is located...auto parts stores carry this part too so don't think that the price you see there is final.
Hope this helps you

Sounds like the Knock sensor bolt has been over torqued.

Hello! Forget fuses...The Knock Sensor is designed to detect pinging..and the ECM adjusts the ignition timing and fuel mixture to prevent knocking to continue..
It is very difficult to replace ..however quite easy to test...Lets eliminate it first...See diagram below..Pull the connector plug and measure the Knock Sensors pin to ground (not the connector)..wire color is White...Two pins are shown in the diagram..your engine only has one pin...Set mutimeter on ohms...One meter probe on Knock sensor pin and the other on bare metal chassis ground..Knock sensor should read between 500k and 620K as in K=1000...send results...The use of a fuel too low in octane (a measurement of anti-knock quality) will result in spark knock...Send a comment with results and then we'll look at the idle air fault...Guru...saailer





I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867

Sounds like you missed connecting something back up. The Knock senser won't make it not run it'll just not let it run at peak power. The OHMs on the sensers just need to be close and your old senser may be just fine. The senser watches a reluctor wheel go by. Did you put it back on? did you put it right side up? It'll fit backwards but it won't line up with the senser.

V6 3.3L The sensor is located underneath the air intake manifold on top of the engine block. This should take an experienced mechanic about 3-4 hours to replace.



Fig. Engine compartment component locations

Hope this help (remember rated this free help) Good luck.

HI, click the link below to be directed to a full diagram that will show you the actual location of the sensor. 718 will be the actual sensor to extract and 739 is the mounting screw for the KS.

KNOCK SENSOR DIAGRAM

it's located at the cylinder block (on the right or left)

bank 1 refers to the side of the engine that #1 cylinder is on , and sensor 2 refers to downstream , after the catalytic converter. , this link shows bank 1 on a 2001 nissan maxima V6 being on the firewall side . if you had a 4 cylinder it would be downstream after the catalytic converter .

http://www.autozone.com/N,26200242/shopping/specsSelect.htm

For replace the knock sensor on a maxima.
You need to remove the intake manifold.
If not, you have no access to the sensor.
This prosses require about 3.5 hour labor.