Abstract: A tester and method for testing for a leak in an evaporative-emissions system of a motor vehicle comprise a/an power supply, computer, display communicating with the computer, analog-to-digital board communicating with the power supply and computer, pressure sensor communicating with the board, housing into which the power supply, board, and sensor are integrated, stationary enclosure, and test connection including a hose to the enclosure. A fuel-vapor pressure-rise rate is recorded with an engine of a motor vehicle turned “off.” A value is recorded that directly correlates with an out-gassing effect created by a volume, blend, and temperature of fuel. A “purge” cycle occurs at idling of the vehicle within a short period of time. The engine applies a vacuum to a fuel-delivery system of the vehicle. Vacuum decay is recorded. A leak rate is determined by off-setting the recorded fuel-vapor pressure-rise rate with the recorded vacuum decay.

Abstract: A tester and method for testing for a leak in an evaporative-emissions system of a motor vehicle comprise a/an power supply, computer, display communicating with the computer, analog-to-digital board communicating with the power supply and computer, pressure sensor communicating with the hoard, housing into which the power supply, board, and sensor are integrated, stationary enclosure, and test connection including a hose to the enclosure. A fuel-vapor pressure-rise rate is recorded with an engine of a motor vehicle turned “off.” A value is recorded that directly correlates with an out-gassing affect created by a volume, blend, and temperature of fuel. A “purge” cycle occurs at idling of the vehicle within a short period of time. The engine applies a vacuum to a fuel-delivery system of the vehicle. Vacuum decay is recorded. A leak rate is determined by off-setting the recorded fuel-vapor pressure-rise rate with the recorded vacuum decay.

Abstract: A color vision inspection system to inspect quality of a vehicle includes at least one camera to capture an inspection image of an inspection target and at least one inspection item on a vehicle. The color vision inspection system also includes a computer communicating with the at least one camera to analyze the inspection image with a calibration image and with CPK statistical analysis determine a percentage difference in a match of the inspection image to the calibration image to conclude whether the inspection item passed the inspection.

Abstract: A test apparatus for an evaporative emission system includes a source of pressure (positive or negative), a sensor for sensing the pressure generated in the evaporative emission system, and an ECU which controls the operation of the source of pressure and receives signals from the sensor reporting the pressure in the vehicle evaporative emission system over time. The ECU compares the sensed data with the stored data representing standard baseline sample vehicles without any leaks to determine the presence of a leak in the evaporative emission system.

Abstract: A test apparatus for an evaporative emission system includes a source of pressure (positive or negative), a sensor for sensing the pressure generated in the evaporative emission system, and an ECU which controls the operation of the source of pressure and receives signals from the sensor reporting the pressure in the vehicle evaporative emission system over time. The ECU compares the sensed data with the stored data representing standard baseline sample vehicles without any leaks to determine the presence of a leak in the evaporative emission system.

Abstract: A portable system for powering and testing the electrical circuits of a vehicle comprising a source of electrical power adapted to power the system and to provide electrical power to the vehicle. A power connector is adapted to quickly connect/disconnect the system to/from the electrical system of the vehicle. A diagnostic connector is adapted to quickly connect/disconnect the system to/from the electrical circuits of the vehicle being tested. A portable, low-power, sealed computing device is adapted to perform testing on the electrical circuits of the vehicle. A vehicle-communications interface is in electrical communication with the computing device and diagnostic connector that is adapted to provide electrical interface between the computing device and the electrical circuits of the vehicle.