Where is the egr valve located on a 2002 Nissan frontier

SOURCE: EGR Valve location

4.7 does not use an egr valve

SOURCE: 2002 Nissan Frontier timing belt

Timing belts are found on the 3.3L engines, timing chains are on the 2.4L engines. The 2002 3.3L Timing belt is changed at 105K during the major service. This service can run over one thousand dollars. It is recommended to replace the belt, tensioner and idlers, cam and crank seals, water pump, and both belts when changing the timing belt. That way, you only open up the front of the engine every 105K. Why change the timing belt and have a water pump start leaking only 20K later and ruin the belt with antifreeze? Other items during the 105K are a major tune up with all the fluids changed and a lube. This does get expensive. You can break it up into several blocks of time and spread the related service items out over a few months to take some of the sting off.

SOURCE: egr valve location

here is a pic of it.
[IMG]http://i253.photobucket.com/albums/hh43/chuck943/V2903019.gif[/IMG]

SOURCE: iat sensor location for a 2002 nissan frontier?

Depending on what size engine you have, it could be on the air filter housing,or somewhere along the intake tube that goes to the throttle body. It's round in shape and has 1 or 2 wires connected to it.Without the size of the engine, I can't tell you exactly where it is.

SOURCE: location of Crankshaft Position Sensor 2002

in the rear of the engine on the drivers side at the top of the transmission bell housing