Vehicles missing a catalytic converter will be rejected from the emissions test if that model vehicle was originally equipped with a catalytic converter. Removing or tampering with emissions equipment may cause your vehicle to fail the test. Follow recommended maintenance schedules for your vehicle. Read the owner's manual and follow maintenance guidelines. Your vehicle will perform more efficiently, increasing its chances of passing the emissions test.
Regular maintenance includes periodic oil and filter changes and tune-ups.
Please notify the certified inspector prior to starting the emissions test if your vehicle has traction control or all-wheel drive.