Diagnostic trouble code (DTC) information

Condition 

Fig 1: Identifying Canister Purge (CP) Valve

Courtesy of VOLVO CARS OF NORTH AMERICA.

EVAP canister shut-off valve closed. The canister purge (CP) valve is closed which means that the fuel tank system is closed. Diagnostic trouble code (DTC) ECM-4008 is stored if fuel tank pressure falls.

Substitute Value 

• leak diagnostic disabled
• affects catalytic converter diagnostic, probe diagnostic, fuel trim and air pump diagnostic

Possible Source 

• leaking canister purge (CP) valve

Fault symptom[s] 

• none