I cannot find or buy a repair manual for my 2005 Nissan Pathfinder. I am trying to find/replace the camshaft sensor on bank 2 but I need a diagram or video. I can't find a video on you tube either.

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Question moved to model category.

Your friend is correct, 2 banks, 2 cats, 4 sensors.

https://www.nissanhelp.com/diy/pathfinder/projects/images/2005-2011-nissan-pathfinder-o2-sensor-location-01.jpg

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website https://big-manuals.com/products/2004-nissan-pathfinder-workshop-service-manual

and this book helped me repair it within an hour, all by myself!!!! It's amazing, no hassle at all
From wiring diagrams, schematic illustrations, spark plugs info, parts info, stepwise instructions, torque specs, error/fault codes, engine info, to every single minute parts, you get everyth ing in there you can't imagine how detailed it is

The sensors are under the intake manifold and a very common problem. Make sure to replace both and buy the new sensor cable assembly.

You need to have a live data scanner hooked up to verify the powertrain control module (PCM) is actually receiving the signals from the CMP sensors you replaced, there is no more guessing here and no quick answers, it is a possibility the wiring harness and connectors to the sensors is defective, the wiring should always be replaced whenever the sensors are replaced on this engine ALWAYS, as they are frequently the problem and not the sensors themselves. But due to the difficulty of replacing the CMP's they both are replaced as a unit repair. Also it may be helpful for you to read the info at the link below. P0345 2005 Nissan Maxima Camshaft Position Sensor Circuit Bank 2

bank 2 oxygen sensor is the one after the cat converter connected to the manifold on the grill side of the engine

If you have a library card you can log into your local library view "Chilton" Manuals on your make and model, and I believe they also have "Motors" Manuals available.

I am not sure what "slip n tcs" means but on the 2005 nissan maxima the code P0340 is for the camshaft position sensor circit on bank 1, which is in the rear of the engine compartment. Code P0345 is for camshaft position on bank 2, which is in the front of the engine compartment. The images show the Cyl banks and a cam sensor.

There are 2 on your vehicle and yes they are a bear to get to. Below is a picture for you. Hope this helps.

bank 1 sesor 2 is oxegen sensor after catalytic converter it probably needs to be replaced.

for a Nissan Quest, it is in the distributor. Not serviceable, replace distributor. Famous for nearing failing and getting brown dust on optical sensor for camshaft sensor. buy on ebay for $200. Cleaning optical sensor is temp repair.

Call dealer & see if yours is there too.