Operation CHARM: Car repair manuals for everyone.

Evaporative Emissions System: Testing and Inspection

Result of Incorrect Operation
^ Poor idle, stalling and poor driveability can be caused by:

- Damaged canister.

- Hoses split, cracked, or not connected to the proper tubes.

^ Evidence of fuel loss or fuel vapor odor can be caused by:

- Liquid fuel leaking from the fuel lines.

- Cracked or damaged EVAP canister.

- Disconnected, misrouted, kinked, deteriorated or damaged EVAP pipe or canister hoses.

- Air cleaner or air cleaner gasket improperly seated.


Refer to EVAP Control System Diagnosis. Under Diagnostic Tables / System Diagnostic Tables. Testing and Inspection