Method to detect a contaminated fuel injector

Details Method to detect a contaminated fuel injector Method to detect a contaminated fuel injector

2008-05-13

2008-05-13

McCall, Eric S. (Department: 2855)

Measuring and testing

Internal combustion engine or related engine system or...

Compression

Reexamination Certificate

active

11552610

ABSTRACT:
A method of diagnosing a fuel injector of an engine system as contaminated is provided. The method comprises: recording a first fuel injection quantity; commanding a fuel rail pressure high; recording a second fuel injection quantity while the fuel rail pressure is high; and diagnosing the fuel injector as contaminated if the first fuel injection quantity is greater than the second fuel injection quantity.

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