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14 General Information
Tampering with Noise Control System
Federal law prohibits the following acts or
the causing thereof:
(1) The removal or rendering inoperative by
any person, other than for purposes of
maintenance, repair, or replacement, of any
device or element of design incorporated
into any new vehicle for the purpose of
noise control prior to its sale or delivery to
the ultimate purchaser or while it is in use;
or
(2) the use of the vehicle after such device
or element of design has been removed or
rendered inoperative by any person.
Among those acts presumed to constitute
tampering are the acts listed below:
Air Intake System
Removing or rendering inoperative the air
cleaner or intake piping.
Engine Cooling Fan
Removing or rendering inoperative the fan
clutch.
Removing the fan shroud.
Engine
Removing or altering engine speed pro-
gramming so as to allow engine speed to
exceed manufacturer’s specifications.
Modifying the parameters of the Engine
Electronic Control Unit.