Can clogged air filter and cabin filter cause oxygen sensors to pop up

SOURCE: cabin air filter

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Cabin Air Filter Installation
Annoyed with all the pollen and dust in your interior? Unless you special ordered it, Ford left out the cabin air filter. Here's how to install one in your Focus. Compliments of myFordFocus.com Forum Member: CinnabonBoy Cost: $10.00 Time to Complete: 10 minutes Tools Required:

• Flat Head screwdriver
• Phillips head screwdriver

Parts Needed:

• Purolator cabin filter: C25387 -OR- Motorcraft cabin filter: FP38

Instructions: (Click images to Enlarge)

1. Stop the windshield wipers when they are in the up position. Since the filter will be placed on the passenger side, this will make it easier to access the panel.
2. In the center of the windshield, there is a small plastic circle piece. Pry it off with the flathead screwdriver, and set it aside in a safe place. Remove the screw you have uncovered. (See picture) This will make it easier to remove the panel you are about to remove.
3. There are 3 plastic locking clips holding the cover down. Use your flathead screwdriver to GENTLY pry them up. Once they are up, give the whole piece a little tug up and to the left. You will see the slot where the filter goes.
   • BE CAREFUL!!!! Everything is made of plastic, and everything can break. Take your time, and don't get frustrated.
4. In this slot, there is an eggcrate style plastic piece retaining the space where your filter is about to be placed. Pull up and out on it to remove it. You will not need this piece, so you can discard it, or keep it in a safe place.
5. Remove your filter from the box.
   • Note: which side is to be placed "up".
6. Slide the filter into the casing, ensuring a snug fit.
7. Replace everything you removed by reversing the steps above.
8. Go in the car, and blast the vent, to remove any dust, etc. that may have been in the vents.
9. Enjoy your clean air! You will notice that your interior will stay cleaner for longer periods of time, and you can breathe easier!!

SOURCE: 1998 f250 cabin air filter location

Ford pickups/expeditions do not have cabin/pollen air filters.sorry.

SOURCE: LOCATE AC CABIN AIR FILTER

no cabin filter on 2003 crown vic cabin filter is under pass cowl trim

SOURCE: 2007 F-150 Supercrew Lariat Cabin Air Filter

According to the shop manual you do not have one.
Air Distribution and Filtering Printable View (79 KB) NOTE: The air distribution system of this vehicle cannot be equipped with a cabin air filter.
There are 2 sources of air available to the air distribution system:

• Outside air
• Recirculated air

Recirculated air is automatically used when the electronic manual temperature control mode selector is set in the MAX A/C or OFF modes and can be selected in any mode other than MAX A/C, OFF or DEFROST by selecting the RECIRC button. Recirculated air is available in all modes except DEFROST. If the vehicle is equipped with an electronic automatic temperature control (EATC) system, recirculated air is used in OFF and is available in all modes except DEFROST. RECIRC mode is a timed function in FLOOR and FLOOR/DEFROST.
Air distribution within the vehicle is determined by the electronic manual temperature control (EMTC) function selector switch position, or is controlled by the EATC system in the AUTOMATIC mode. The air distribution mode on EATC vehicles may be overridden by the driver if desired. Air distribution doors are used to direct airflow within the heater core and evaporator core housing and the plenum chamber. An electronic mode door actuator is used to position these air distribution doors. One air inlet mode door is used to switch between FRESH or RECIRC air inlet. An electric actuator is used to position the air inlet mode door.
Air enters the passenger compartment from the:

• instrument panel A/C registers.
• heater outlet floor ducts.
• windshield defroster duct.
• side window demisters.
• center flow-through console (if equipped).

Passenger compartment air is exhausted from the vehicle through open windows or body air vents.

SOURCE: Wher do you install a cabin filter on a 2005 Ford Escape XLT?

Yes you have one and it runs about $15.00.

Looking for a picture for you but it should be in the engine compartment area, passenger side, just below the windshield on the firewall area...or JUST above it.

But looking for a picture for you. It states that you should change it about every 150,000 miles.