Try AUTOBOOKSONLINE.COM or motorlit.com
A 2006 Nissan Pathfinder has a timing chain. For more details on location and repair, check your owners manual.
this is an involved operation, i suggest you purchase haynes repair manual # 72030. you must remove all front engine components to get them off.
A vacuum hose diagram for a 1995 Nissan Pathfinder 3.0L V6 can be found in an automotive repair manual. Automotive repair manuals for almost any vehicle can be found for around $25 at automotive parts stores.
Repair the problem then use an OBD2 scan tool to reset the light.
in a haynes auto repair manual
You can find a 1996 Nissan Pathfinder knock sensor picture in most auto repair manuals. Most Nissan dealerships repair centers will provide you with a picture of the sensor.
A 1998 Nissan Frontier engine diagram is available through a service repair manual. Auto repair shops also have data bases that have these engine diagrams available to be printed out for their consumers.
You can get Auto repair /service manuals online here: http://userguides.50webs.com/
An engine control diagram for a 1994 Nissan Altima can be found in an automobile repair manual. Both Chilton and Hayes repair manuals are available for most vehicles.
The most dependable answer would either be in your owners manual, FSM, or a repair manual for engine specs.
you can purchase a repair manual for your vehicle from most auto parts stores, or try autozone.com and look under component location or repairs for the Nissan Pathfinder.
Free Nissan Repair Service Manuals - cardiagn.com/category/nissan-repair-service-manuals/