Diagnostic method and arrangement for quantitatively checking actuators in internal combustion engines
Fuel injection pump for a two-stroke engine
Self-diagnosing fuel-purging system used for fuel processing system
Positive pressure canister purge system integrity confirmation
Fuel tank vapor control system with means for warning of malfunction of canister
Malfunction detection apparatus for detecting malfunction in evaporated fuel purge system
Method and arrangement for checking the controllability of a tank venting valve
Leak monitor for hydraulic drive systems
ApplicationNo. 599361 filed on 03/05/1996
US Classes:123/520Purge valve controlled by engine parameter
ExaminersPrimary: Moulis, Thomas N.
Attorney, Agent or Firm
Foreign Patent References
International ClassF02M 033/02
AbstractA method of leak detection for an evaporative emission control system to determine if a leak is present in a portion of the system includes the steps of energizing a leak detection pump to close a canister vent control valve of the system and pressurize the system, and determining whether a possible pinched line of the system has occurred.