F - Mech Eng,Light,Heat,Weapons – 02 – D
Patent
F - Mech Eng,Light,Heat,Weapons
02
D
341/38.123
F02D 1/00 (2006.01) F02D 21/08 (2006.01) F02D 41/00 (2006.01) F02M 25/07 (2006.01)
Patent
CA 1250640
EGR DIAGNOSTIC SYSTEM Abstract of the Disclosure A system is described for diagnosing the operation of an exhaust gas recirculation system of an internal combustion engine having a speed density fuel delivery system and having a closed loop fuel adjustment. The EGR system operation is determined by disabling the EGR system and observing the magnitude of change of the integral adjustment of the closed loop system.
508619
Chiesa Alan F.
Medendorp Leroy E.
Perry Edward C.
Schweikert John F.
General Motors Corporation
Gowling Lafleur Henderson Llp
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