CATALYTIC CONVERTER FAILURES: If a catalytic converter needs replacing, one of the problems below most likely contributed to its failure. Engine Tune-Up Required. A number of problems could occur to the catalytic converter as the result of an engine that is out of tune.
View Full Document. - Habituation : refers to gradual reduction in the strength of a response due to repetitive stimulation.
1 a restraining, arresting, or checking of the action of an organ or cell. 2  the reduction of a reflex or other activity as the result of an antagonistic stimulation.  a state created at synapses making them less excitable by other sources of stimulation.