Question 1

What is a Split Purge/Seal EVAP System?

Accepted Answer

The Split Purge/Seal EVAP System differs from a traditional sysstem through its ability to isolate and test different section of the system independently with a series of bypass and 2 way valves

Question 2

What are Split Purge/Seal EVAP diagnostic checks?

Accepted Answer

Inspect for loose gas cap
Inspect hoses for cracks, leaks and proper routing and attachment
Check Key-on, Engine-off (KOEO) FTP sensor voltage for proper reading
Check purge, vent and bypass solenoid function with scan tool or jumper wire
Check for mechanical leakage on all solenoids
If FTP sensor is in range, solenoids operate and no visual leaks are present, smoke/flow testing will be necessary for leak testing

Question 3

What are the Split Purge/Seal EVAP components?

Accepted Answer

Purge solenoid
Charcoal canister
Vent solenoid
Fuel Tank Pressure sensor
Bypass solenoid
2-way valve or Vacuum Cut valve