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:
Changing
WARNING
Connect and disconnect the positive and negative cables in the correct sequence.
Removal
Switch off the ignition, remove the remote key from the ignition slot and wait
at least 5 ...
Storing wheels and tires
When storing complete wheels (tires mounted
on rims), they should be suspended off the
floor or placed on their sides on the floor.
Tires not mounted on rims should be stored on
their sides or ...
Acceleration
The air conditioning is momentarily disengaged
during full-throttle acceleration. ...