Apparatus and methods for protecting a catalytic converter...

Details Apparatus and methods for protecting a catalytic converter... Apparatus and methods for protecting a catalytic converter...

2006-07-04

2006-07-04

Huynh, Hai (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel injection system

C123S520000

Reexamination Certificate

active

07069911

ABSTRACT:
A method of controlling engine operation in a vehicle in response to a misfire of one of a plurality of engine cylinders fueled through fuel injectors. The vehicle includes a fuel vapor storage canister. The method includes disabling at least one of the fuel injectors, using an open loop to control fuel delivery by the injectors to the cylinders, and disabling purging of the canister. The disabling and using steps are performed while the misfire continues.

REFERENCES:
patent: 6422226 (2002-07-01), Niki et al.
patent: 6516772 (2003-02-01), Ueno et al.
patent: 6763707 (2004-07-01), Kumagai et al.

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