i have a 2002 4.6L f150 , i need to know what are the 2 sensors called on the stock air intake from the fender wall back to the trottle body.
i see 2 of them the big one on the airbox is the mass air flow sensor, the other i have no idea, reason for i bought a cold air intake after market no name, and i onle see three holes in it , it came with 2 rubber hoses to hook up and 1 hole to mount a sensor, not 2 hole, which sensor can i do with out? i need help.

http://cgi.ebay.com/ebaymotors/97-02...=p4506.c0.m245

this thing looks awesome , but i have no idea what to do now.

 

There is the MAF sensor, which is in the big part of the stock airbox, and looks like it bolts to the heat sheild of your ebay intake.

Then there is the IAT sensor, which monitors the temperature of the air coming in. Its set into the flexible part of the stock intake if I remember right.

Im trying to think of what third one there would be though.....

 

thanks and your right, right after i posted , the guy i got it from emailed me step by step on how to with pictures, i have to dissasemble the air box and use the inside guts of it, looks easy, thanks

 

The third port is for a rubber hose....it looked like some kind of crankcase breather hose if I remember correctly. The hose should be connected to the stock air intake. Take it off and put it on the port that extends out about a half inch.

 

got it installed, sounds awesome, deep sound at wide open, sounds just like a cop car.
i notice little better idle, and lot more power on acceleration. i put pics up friday, good deal ,very satisfied, only cost less than 60.00, very comparable to a k&n 77
this one has 3.5" pipe with a washable big filter.