Vehicle Inspection Details

1975-1995 Gasoline Vehicles
1996-Current Gasoline Vehicles
1975-2001 Diesel Vehicles
2002 and Newer Diesel Vehicles

1975-1995 Gasoline Vehicles

Required Tests: Tailpipe, Visual Tampering inspection on the Gas cap and Catalytic Converter

Procedures

  • The inspector will verify that the vehicle has a Catalytic Converter (if required) on the exhaust pipe (between the engine block and the muffler). If the vehicle’s catalytic converter has been removed or tampered with, the vehicle will fail the inspection
  • The inspector will verify that the vehicle has a properly sealing gas cap on all gas tanks. If there are cracks in the seal of the gas cap, it will fail the inspection.
  • The inspector will insert a probe into the vehicle’s tailpipe to measure the emissions. The tailpipe is required to come out of the back or side of the vehicle in order to be tested. If the tailpipe does not come out the back or side of the vehicle, the vehicle cannot be tested.

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1996-Current Gasoline Vehicles

(NOTE: the driver will need to exit the vehicle during the OBDII part of the test)

Required Tests OBDII (On Board Diagnostic) Test; Pressurized gas cap test; Visual inspection of the Catalytic Converter

Procedures

  • The inspector will verify that the vehicle has a Catalytic Converter (if required) on the exhaust pipe (between the engine block and the muffler). If the vehicle’s catalytic converter has been removed or tampered with, the vehicle will fail the inspection
  • The inspector will connect the vehicle’s gas cap to the pressurized gas cap testing equipment. The gas cap is required to hold pressure during the test.
  • The inspector will connect a DLC (Data Link Connector) to the vehicle’s OBDII port (generally located under the driver’s dash). The inspector will verify that the vehicle’s MIL( Malfunction Indicator Lamp) or Check Engine light is operating correctly. The MIL is required to come on when the ignition is on and the engine is off. The MIL is then required to turn off once the engine is started.
  • The inspector will instruct the computer to retrieve any diagnostic trouble codes which the vehicle’s OBD system is storing. The system is read-only and no changes to your vehicle will be made; only data related to the vehicle’s emission components will be downloaded to the emissions analyzer

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1975-2001 Diesel Vehicles

(NOTE: the driver will need to exit the vehicle during the OBDII part of the test)

Required Tests Smoke Opacity Test; Visual inspection on the Gas Cap and Catalytic Converter

Procedures

  • The inspector will verify that the vehicle has a Catalytic Converter (if required) on the exhaust pipe (between the engine block and the muffler). If the vehicle’s catalytic converter has been removed or tampered with, the vehicle will fail the inspection.
  • The inspector will verify that the vehicle has a properly sealing gas cap on all gas tanks. If there are cracks in the seal of the gas cap, it will fail the inspection.
  • The inspector will attach the opacity testing equipment to the tailpipe of the vehicle. If there are visible holes in the exhaust system, the vehicle will not be able to be tested. The tailpipe is required to come out of the back or side of the vehicle in order to be tested. If the tailpipe does not come out the back or side of the vehicle, the vehicle cannot be tested.

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2002 and Newer Diesel Vehicles

(NOTE: the driver will need to exit the vehicle during the OBDII part of the test)

Required Tests OBDII (On Board Diagnostic) Test; Visual inspection of the Catalytic Converter and Gas Cap(s)

Procedures

  • The inspector will verify that the vehicle has a Catalytic Converter (if required) on the exhaust pipe (between the engine block and the muffler). If the vehicle’s catalytic converter has been removed or tampered with, the vehicle will fail the inspection
  • The inspector will verify that the vehicle has a properly sealing gas cap on all gas tanks. If there are cracks in the seal of the gas cap, it will fail the inspection.
  • The inspector will connect a DLC (Data Link Connector) to the vehicle’s OBDII port (generally located under the driver’s dash). The inspector will verify that the vehicle’s MIL( Malfunction Indicator Lamp) or Check Engine light is operating correctly. The MIL is required to come on when the ignition is on and the engine is off. The MIL is then required to turn off once the engine is started.
  • The inspector will instruct the computer to retrieve any diagnostic trouble codes which the vehicle’s OBD system is storing. The system is read-only and no changes to your vehicle will be made; only data related to the vehicle’s emission components will be downloaded to the emissions analyzer.

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