How do states use OBD II for emission inspections?
Many states connect a computer directly to a vehicle's OBD II system. The inspector can then read "faults." In some states, this type of inspection has replaced the tailpipe emission test.
See also:
Information displays
Information displays in the instrument panel
The information displays show information on some of the vehicle's functions,
such as cruise control, the trip computer and messages. The informat ...
On/Off button
To activate the system:
1. Turn the ignition key to position I.
NOTE
If you switch off the ignition while the audio
system is on, the system will be on when the
ignition is switched on again. ...
Three-way catalytic converter
Keep your engine properly tuned. Certain engine malfunctions, particularly
involving the electrical, fuel or distributor ignition systems, may cause unusually
high threeway catalytic converte ...