Air injection system diagnostic

Details Air injection system diagnostic Air injection system diagnostic

1991-04-01

1992-05-19

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Methods

60276, 60277, 60289, F01N 322

Patent

active

051136511

ABSTRACT:
A comprehensive air injection system diagnostic uses hardware already available on many vehicle exhaust systems to monitor the oxygen content of the exhaust, so as to indicate steady state oxygen levels therein that are not in accord with the present state of the air injection system, and accordingly are assumed to be the result of a failure in the air injection system.

REFERENCES:
patent: 5056308 (1991-10-01), Kume

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