What is a evaporative emission system pressure sensor?

What is a evaporative emission system pressure sensor?

The EVAP Pressure Sensor, also known as a Fuel Tank Pressure (FTP) Sensor is a device that measures air pressure or vacuum in the evaporative emission (EVAP) system. This sensor is typically found on top of or inside of the fuel tank.

How is the evaporative emission control system ( EVAP ) pressure sensor used?

The evaporative emission (EVAP) control system pressure sensor is used for onboard diagnosis of the EVAP system itself to check for leaks and does not initiate or control changes to the EVAP purge or vent valve operations.

What is the diagnostic code for evaporative emission control?

Cost of diagnosing the P0452 code. P0452 is a diagnostic trouble code (DTC) for “Evaporative Emission Control System Pressure Sensor Low Input”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation.

What does p0453 mean on an EVAP sensor?

Basically P0453 means the PCM (Powertrain Control Module) noticed the EVAP Pressure sensor or FTP is indicating a higher than normal pressure (above 4.5 Volts) in the EVAP system. NOTE: On some vehicles the FTP is a part of the fuel pump assembly in the tank.

How does the PCM control the EVAP system?

The PCM electronically controls the purge control valve/solenoid which is the heart of the EVAP system. EVAP system/fuel tank pressure is monitored by the PCM using the EVAP pressure sensor. Located in the fuel tank and integrated into the fuel pump/fuel level sending unit housing, the EVAP pressure sensor can be quite challenging to access.

What is p2402 evaporative emission control system?

OBD-II Code P2402 is defined as a Evaporative Emission System Leak Detection Pump Control Circuit . The Leak Detection Pump is part of the Evaporative Emissions System. After the vehicle has been sitting for a few hours, this pump will turn on and create a vacuum in the EVAP system. The engine computer (PCM) runs this test when the vehicle is off.

How does the evaporative emissions system work?

The evaporative emission (EVAP) control system limits the fuel vapors from escaping into the atmosphere. The EVAP transfers the fuel vapors from the sealed fuel tank to an activated carbon storage device, the EVAP canister. The EVAP canister stores the vapors until the engine is able to use the extra fuel vapor.

What is the function of evaporative emission canister?

What is the function of Evaporative Emission Canister. The evaporative emission (EVAP) canister is a storage device for fuel vapors that are emitted by the fuel tank in hot soak conditions. When the vehicle is at normal operating conditions, the vapors are purged from the canister. The EVAP canister is controlled by the evaporative emission (EVAP) canister purge valve.

Where is the EVAP emission canister?

The EVAP emissions control canister is located on the driver side, near the rear tires . Jack up the vehicle from the recommended jack placement and place the rear of the vehicle on jack stands for support. Make sure to keep pressure on the jack after lowering the vehicle onto the jack stands for extra safety.