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The cam sensor is located on the transmission housing near the top close to the firewall.
code 33 is for the exhaust gas sensor (also known as the O2 sensor) if the computer is coding a 33 it does need to be changed. You can also uplug the sensor at the connector and if the truck runs better that's a good indication that the sensor is bad. The connector is on the passanger side fender wall with about 3 other connectors and it is on the bottom of the group with 3 wires running to the sensor.
Code 33 is a MAP sensor code. MAP sensor circuit error (signal is high meaning there is low vacuum getting to the sensor). Check the vacuum line going to the MAP sensor. Its usually located on the side of the breather, usually a green plug with three wires in line.
It is located on top of the transmission next to where is mounts up with the motor
overheating e-32 and e-33
The 2006 Nissan Altima has a drag coefficient of .33 Cd.
The 2003 Nissan Pathfinder has a 33 degrees angle of approach.
The 2006 Nissan Quest has a drag coefficient of .33 Cd.
The 2005 Nissan Quest has a drag coefficient of .33 Cd.
The 2004 Nissan Quest has a drag coefficient of .33 Cd.
The 2004 Nissan Pathfinder has a 33 degrees angle of approach.
The 2005 Nissan Altima has a drag coefficient of .33 Cd.