Learn how to test a charcoal canister for proper functionality.

How to test an EVAP charcoal canister

The Fuel Tank Pressure (FTP) sensor monitors the pressure/vacuum in the EVAP system. Learn how to test if the fuel tank pressure sensor is functioning properly.

EVAP Fuel Tank Pressure Sensor Test

Learn how to perform a smoke test to identify leaks in your cars EVAP system

Learn how to perform a smoke test to identify leaks in your cars EVAP system.

EVAP Purge/Seal Leak Test

A purge solenoid is a normally closed solenoid that controls the flow of engine vacuum to the EVAP system. It can through multiple DTCs including P0440, P0441, etc. Learn how to test a mechanical or electrical solenoid for proper functionality.

A purge solenoid is a normally- closed solenoid that controls the flow of engine vacuum to the EVAP system. Learn how to test a mechanical or electrical solenoid for proper functionality.

How to Test EVAP Purge Solenoid

How to test EVAP Purge Solenoid

A Vent solenoid is a normally open solenoid that closes when energized and seals the system when the EVAP monitor is running a leak test. Learn how to test this functionality.

How-Tos

EVAP System