2002 Ford f150 evaporative emission control system sensor where is it located

SOURCE: evaporative emissions control system pressure sensor 99' suburban

Hello, You have an emission sytem problem . The actual sensor is on top of the fuel tank that lets the system know how much air pressure is on the system, its made in the fuel pump module, but if your system has a po440 code do not waste your time replacing it. You (99 percent sure) will have a canister and vent valve. They will cost about 150 dollars to replace. Please rate my answer. Thank You.

SOURCE: what P0453-Evaporative Emission control System Pressure Sensor h

P0453 is for the fuel tank pressure sensor. This code means that the voltage on the sensor was greater than 4.5V during key on engine off or during any engine operating mode.
Normal voltage from this sensor with no vacuum or pressure on the system should be 2.37 to 2.97V.
PCM sends a reference voltage of 5V to the sensor and tells if there is pressure or vacuum in the fuel tank by the voltage that returns from the sensor.

Possible causes are:

SOURCE: evaporative emission control system

The evap system allows for gas vapors to be recirculated through the system and burned by the engine,rather than vented into the atmosphere.

It means that the Gas cap is bad,the evap canister is clogged,you have a bad hose,or a sensor is bad.Replace the gas cap first,This is a common problem.

Colin Stickland

• 22516 Answers
• Posted on Mar 20, 2011

SOURCE: P0452 Evaporative Emission Control System

if you check the rubber pipes from the inlet manifold you will find that one of them is perished or cracked so its losing vacumn.,then check the return one to the fuel tank as well just for good measure

ZJ Limited

• 17989 Answers
• Posted on Jul 15, 2012

SOURCE: code P0442-evaporated emissions control system leak.what does this mean,and how do i fix this problem on my 1998 ford explorer.

Hi there:
P0442 - Evaporative Emission Control System Leak Detected (small leak)
This indicates a fuel vapor leak in the EVAP control system. It means a very small leak has been detected. In fact, the leak can be from a hole as small as 0.04" in diameter. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system.

Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.

You likely won't notice any drivability problems.

A code P0442 most likely means one or more of the following has happened:
A loose or improperly affixed gas cap
A non-conforming gas cap (i.e. not factory/original brand)
A small leak/hole in a fuel vapor hose/tube
Other small leak in EVAP system
Faulty vent o-ring seal

Possible Solutions: with a P0442, the most common repair is to:
Remove and reinstall the gas cap, clear the codes, and drive for a day and see if the codes come back.
Otherwise, replace the gas cap, or
Inspect the EVAP system for cuts/holes in tubes/hoses

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