
Tampering and Altering Tampering with or altering the emission control system may increase emissions beyond the legal limit. Among those acts that constitute tampering are: l Removal or alteration of any part of the intake, fuel, or exhaust systems. l Altering or defeating the governor linkage or speed-adjusting mechanism to cause the engine to operate outside its design parameters. L TECHNICAL & CONSUMER INFORMATION Problems That May Affect Emissions If you are aware of any of the following sym