The initial air intake is a small hole in the driver's side front fender. From there it goes into a box that filters water then on to the air filter and down through the bottom of it into the motor. The MAF sensor is part of the intake on the motor.
It's in the intake one of the bigger hoses that go in. You have to use a wrench to remove it.
The PCV valve is located on the back, drivers side of the intake manifold in a short, rubber hose. It is threaded into the intake manifold close to the last "N" in Nissan which is imprinted into the intake manifold. It requires a 3/4" wrench to remove it.
The EGR valve on a Nissan Frontier is on the drivers side of the engine. It is near the firewall, under the intake pipe.
behind the alternator, under the intake. to the right of the oil filter. pain in the rear to change. trust me, i used to be a tech at a Nissan dealer
The Knock sesor is located on the backside of the block right underneath intake manifold.
behind the thermostat housing
I HAVE A 2002 NISSAN FRONTIER 4X4 3.3 L V6 I HAVE KNOW IDEA WERE THE KNOCK SENSOR IS LOCATED The knock sensor on the 3.3l model should be under your intake manifold, which means you will have to remove the upper intake manifold to access it. on 2.4l models, it is located on the side of the engine block.
The PCV valve on a 2000 Nissan Frontier 2.4 is on the top back part of the engine. It is attached to the intake manifold via a hose.
The initial air intake is a small hole in the driver's side front fender. From there it goes into a box that filters water then on to the air filter and down through the bottom of it into the motor. The MAF sensor is part of the intake on the motor.
everyone one is telling me it is located under the intake or intake manifold, and that if must be removed..
there are tons of things you can do to your car to improve power and gas mileage here some http://www.racepages.com/products/?Ntt=Nissan+Frontier+Cold+Air+Intake&N=4294967103 http://www.autopartswarehouse.com/products/parts.php?year=2002&make_text=nissan&category=air_intake&model_text=frontier
on the air intake